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Criteria:   found in Riverside County  •   is native  •  group by lifeform
4825  records include photos for these plants # number of sources
Scientific Name Common Name Lifeform #
  Lifeform: Annual1617 plants
Abronia pogonantha Mohave sand verbena Annual herb  
Abronia villosa Hairy sand verbena Annual herb 4
Abronia villosa var. aurita Yellow hairy sand verbena Annual herb  
Abronia villosa var. villosa Hairy sand verbena Annual herb  
Achyrachaena mollis Blow wives Annual herb 2
Achyronychia cooperi Frost mat Annual herb  
Acmispon americanus American bird's foot trefoil Annual herb 6
Acmispon americanus var. americanus Spanish lotus Annual herb  
Acmispon brachycarpus Short podded lotus Annual herb  
Acmispon maritimus Coastal lotus Annual herb 2
Acmispon maritimus var. brevivexillus Coastal lotus Annual herb  
Acmispon maritimus var. maritimus Coastal lotus Annual herb  
Acmispon micranthus Small flowered lotus Annual herb 2
Acmispon parviflorus Hill lotus Annual herb  
Acmispon strigosus Strigose lotus Annual herb 3
Acmispon wrangelianus Chilean trefoil Annual herb  
Agoseris heterophylla Mountain dandelion Annual herb  
Agoseris heterophylla var. crenulata Annual agoseris Annual herb  
Agoseris heterophylla var. heterophylla Annual agoseris Annual herb  
Agoseris heterophylla var. turgida Annual agoseris Annual herb  
Aliciella hutchinsifolia Desert pale gilia Annual herb  
Aliciella latifolia Broad leaf gilia Annual herb  
Aliciella latifolia ssp. imperialis Broadleaf gilia Annual herb  
Aliciella latifolia ssp. latifolia Broadleaf gilia Annual herb  
Aliciella leptomeria Sand aliciella Annual herb  
Aliciella micromeria Dainty gilia Annual herb  
Allionia incarnata var. villosa Trailing windmills Annual, Perennial herb  
Allophyllum divaricatum Purple false gilia Annual herb  
Allophyllum gilioides Dense false gilia Annual herb  
Allophyllum gilioides ssp. violaceum Dense false gilia Annual herb  
Allophyllum glutinosum Sticky false gilia Annual herb  
Alopecurus saccatus Foxtail Annual grass  
Amaranthus blitoides Prostrate pigweed Annual herb  
Amaranthus californicus California amaranth Annual herb  
Amaranthus fimbriatus Fringed amaranth Annual herb  
Amaranthus palmeri Palmer's amaranth Annual herb  
Amaranthus powellii Powell's amaranth Annual herb  
Amaranthus powellii ssp. bouchonii Annual herb  
Amaranthus powellii ssp. powellii Powell's amaranth Annual herb  
Amaranthus torreyi Sandhill amaranth Annual herb  
Amaranthus watsonii Watson's amaranth Annual herb  
Ambrosia acanthicarpa Annual burrweed Annual herb 3
Ammannia coccinea Red ammannia Annual herb  
Ammannia robusta Grand ammania Annual herb  
Ammoselinum giganteum Desert umbel Annual herb  
Amsinckia douglasiana Douglas' fiddleneck Annual herb  
Amsinckia eastwoodiae Eastwood's fiddleneck Annual herb 1
Amsinckia intermedia Common fiddleneck Annual herb  
Amsinckia menziesii Fiddleneck Annual herb 1
Amsinckia menziesii var. intermedia Orange flowered menzies' fiddleneck Annual herb  
Amsinckia menziesii var. menziesii Small flowered fiddleneck Annual herb 1
Amsinckia retrorsa Rigid fiddleneck Annual herb  
Amsinckia spectabilis Seaside fiddleneck Annual herb  
Amsinckia tessellata Devil's lettuce Annual herb 4
Amsinckia tessellata var. gloriosa Large flowered devil's fiddleneck Annual herb 1
Amsinckia tessellata var. tessellata Devil's lettuce Annual herb  
Amsinckia vernicosa var. furcata Forked fiddleneck Annual herb 2
Amsinckia vernicosa var. vernicosa Green fiddleneck Annual herb  
Anagallis minima Chaffweed Annual herb  
Ancistrocarphus filagineus Woolly fishhooks Annual herb  
Androsace elongata California rockjasmine Annual herb  
Androsace elongata ssp. acuta California androsace Annual herb  
Androsace occidentalis var. simplex Western rock jasmine Annual herb  
Androsace septentrionalis ssp. subumbellata Pygmy rock jasmine Annual, Perennial herb 1
Anisocoma acaulis Scale bud Annual herb 2
Antirrhinum coulterianum Coulter's snapdragon Annual herb 2
Antirrhinum cyathiferum Deep canyon snapdragon Annual herb  
Antirrhinum filipes Tangled snapdragon Annual herb  
Antirrhinum kelloggii Lax snapdragon Annual herb  
Antirrhinum multiflorum Sticky snapdragon Annual, Perennial herb 3
Antirrhinum nuttallianum Nuttall's snapdragon Annual, Perennial herb 1
Antirrhinum nuttallianum ssp. nuttallianum Nuttall's snapdragon Annual, Perennial herb  
Antirrhinum nuttallianum ssp. subsessile Nuttall's snapdragon Annual, Perennial herb  
Antirrhinum ovatum Oval leaved snapdragon Annual herb  
Antirrhinum vexillo-calyculatum Brewer's snapdragon Annual herb  
Antirrhinum vexillo-calyculatum ssp. breweri Brewer's sail flower snapdragon Annual herb  
Antirrhinum vexillo-calyculatum ssp. intermedium Intermediate sail flower snapdragon Annual herb  
Antirrhinum vexillo-calyculatum ssp. vexillo-calyculatum Wiry snapdragon Annual herb  
Aphanes occidentalis Ladie's mantle Annual, Perennial herb  
Apiastrum angustifolium Wild celery Annual herb  
Argemone munita Prickly poppy Annual, Perennial herb 4
Arida arizonica Silver lake daisy Annual herb  
Aristida adscensionis Three awn Annual grass 4
Aristida oligantha Oldfield three awn Annual grass  
Aster frondosus Short rayed alkali aster Annual herb  
Astragalus acutirostris Beaked rattle weed Annual herb  
Astragalus aridus Annual desert milk vetch Annual herb  
Astragalus clarianus Clara hunt's milk vetch Annual herb  
Astragalus didymocarpus Dwarf white milk vetch Annual herb  
Astragalus didymocarpus var. didymocarpus Common dwarf milkvetch Annual herb  
Astragalus didymocarpus var. dispermus Notch leaved locoweed Annual herb  
Astragalus didymocarpus var. obispoensis San luis obispo milk vetch Annual herb  
Astragalus gambelianus Loco weed Annual herb  
Astragalus gambelianus var. elmeri Elmer's dwarf milk vetch Annual herb  
Astragalus insularis Cedros milkvetch Annual herb  
Astragalus insularis var. harwoodii Harwood's milk vetch Annual herb  
Astragalus lentiginosus Freckled milk vetch Annual, Perennial herb  
Astragalus lentiginosus var. borreganus Borrego milk vetch Annual herb  
Astragalus lentiginosus var. coachellae Coachella valley milk vetch Annual herb  
Astragalus lentiginosus var. floribundus Floriferous milk vetch Annual, Perennial herb  
Astragalus lentiginosus var. fremontii Fremont's milk vetch Annual, Perennial herb  
Astragalus lentiginosus var. platyphyllidius Volcanic milk vetch Annual, Perennial herb  
Astragalus lentiginosus var. variabilis Freckled milk vetch Annual, Perennial herb  
Astragalus mohavensis Mohave locoweed Annual, Perennial herb  
Astragalus mohavensis var. hemigyrus Curved pod milk vetch Annual herb  
Astragalus mohavensis var. mohavensis Mojave milk vetch Annual, Perennial herb  
Astragalus nutans Providence Mountain milkvetch Annual herb  
Astragalus nuttallianus Nuttall locoweed Annual herb  
Astragalus nuttallianus var. austrinus Southern small flowered milk vetch Annual herb  
Astragalus nuttallianus var. cedrosensis Cedros milk vetch Annual herb  
Astragalus nuttallianus var. imperfectus Turkey peas Annual herb  
Astragalus sabulonum Gravel milk vetch Annual herb  
Athysanus pusillus Dwarf athysanus Annual herb  
Atrichoseris platyphylla Parachute flower Annual herb  
Atriplex argentea Silverscale saltbush Annual herb 2
Atriplex argentea var. expansa Mojave silverscale Annual herb 2
Atriplex argentea var. mohavensis Mojave silverscale Annual herb 2
Atriplex coronata Crownscale Annual herb  
Atriplex coronata var. coronata Crownscale Annual herb  
Atriplex coronata var. notatior San jacinto valley crownscale Annual herb  
Atriplex covillei Coville's orach Annual herb  
Atriplex dioica Spike saltbush Annual herb  
Atriplex elegans Wheelscale Annual herb  
Atriplex elegans var. elegans Wheelscale Annual herb  
Atriplex elegans var. fasciculata Wheelscale Annual herb  
Atriplex erecticaulis Erectstem saltbush Annual herb  
Atriplex joaquinana San joaquin spearscale Annual herb  
Atriplex joaquiniana San joaquin orache Annual herb  
Atriplex longitrichoma Long hair silverscale Annual herb  
Atriplex pacifica South coast saltscale Annual herb  
Atriplex parishii Parish's brittlescale Annual herb  
Atriplex patula var. obtusa Spear oracle Annual herb  
Atriplex patula var. patula Spear oracle Annual herb 3
Atriplex phyllostegia Leafcover saltweed Annual herb 1
Atriplex serenana Saltscale Annual herb 1
Atriplex serenana var. davidsonii Davidson's saltscale Annual herb  
Atriplex serenana var. serenana Saltscale Annual herb  
Atriplex subspicata Spike saltbush Annual herb  
Atriplex torreyi Torrey's saltbush Annual herb  
Atriplex vallicola Lost hills crownscale Annual herb  
Baileya pauciradiata Lax flower Annual herb  
Baileya pleniradiata Wooly marigold Annual, Perennial herb 2
Bergia texana Texas bergia Annual herb  
Bidens frondosa Sticktight Annual herb  
Blennosperma nanum Yellow carpet Annual herb  
Blennosperma nanum var. nanum Common blennosperma Annual herb  
Blepharizonia plumosa ssp. plumosa Big tarplant Annual herb  
Blepharizonia plumosa ssp. viscida Glandular big tarweed Annual herb  
Boerhavia coulteri Coulter's spiderling Annual herb  
Boerhavia coulteri var. palmeri Coulter's spiderling Annual herb  
Boerhavia intermedia Fivewing spiderling Annual herb  
Boerhavia triquetra Creeping sticky stem Annual herb  
Boerhavia triquetra var. intermedia Fivewing spiderling Annual herb  
Boerhavia wrightii Wright's boerhavia Annual herb  
Bouteloua aristidoides Needle grama Annual grass 2
Bouteloua aristidoides var. aristidoides Needle grama Annual grass  
Bouteloua barbata Sixweeks grama Annual grass  
Bouteloua barbata var. barbata Six weeks grama Annual grass  
Bowlesia incana Bowlesia Annual herb 1
Bromus arizonicus Arizona brome Annual grass 1
Bromus laevipes Narrow flowered brome Annual, Perennial grass 4
Bromus orcuttianus Orcutt's brome grass Annual grass 1
Calandrinia ambigua Desert calendrinia Annual herb  
Calandrinia breweri Brewer's calandrinia Annual herb  
Calandrinia ciliata Redmaids Annual herb 8
Calandrinia maritima Seaside calandrinia Annual herb  
Calandrinia menziesii Red maids Annual herb 8
Calibrachoa parviflora Seaside petunia Annual herb  
California macrophylla Round leaved filaree Annual herb  
Callitriche heterophylla var. bolanderi Bolander's water starwort Annual herb  
Callitriche marginata Winged water starwort Annual herb (aquatic)  
Callitriche verna Water starwort Annual herb  
Calycadenia truncata ssp. microcephala Oregon western rosinweed Annual herb  
Calycoseris parryi Yellow tackstem Annual herb  
Calycoseris wrightii White tackstem Annual herb  
Calyptridium monandrum Common pussypaws Annual herb  
Calyptridium parryi Parry's pussypaws Annual herb  
Calyptridium parryi var. arizonicum Parry's pussypaws Annual herb  
Calyptridium parryi var. parryi Parry's pussypaws Annual herb  
Calyptridium pygmaeum Pygmy pussypaws Annual herb  
Calyptridium umbellatum Pussy toes Annual, Perennial herb 3
Calyptridium umbellatum var. caudiciferum Alpine cistanthe Annual, Perennial herb 3
Calyptridium umbellatum var. umbellatum Mt. hood pussypaws Annual, Perennial herb  
Camissonia andina Plateau evening primrose Annual herb  
Camissonia arenaria Mousetail evening primrose Annual, Perennial herb  
Camissonia bistorta California sun cup Annual herb 5
Camissonia boothii Booth's sun cup Annual herb  
Camissonia boothii ssp. alyssoides Pine creek evening primrose Annual herb  
Camissonia boothii ssp. boothii Booth's evening primrose Annual herb  
Camissonia boothii ssp. condensata Clustered booth's desert primrose Annual herb  
Camissonia boothii ssp. decorticans Redish shredding primrose Annual herb  
Camissonia boothii ssp. desertorum Desert shredding primrose Annual herb  
Camissonia boothii ssp. intermedia Desert shredding primrose Annual herb  
Camissonia brevipes Yellov cups Annual herb  
Camissonia brevipes ssp. arizonica Arizona sun cup Annual herb  
Camissonia brevipes ssp. brevipes Golden sun cup Annual herb  
Camissonia brevipes ssp. pallidula Pale sun cup Annual herb  
Camissonia californica California primrose Annual herb 1
Camissonia campestris Field primrose Annual herb  
Camissonia campestris ssp. campestris Field sun cup Annual herb  
Camissonia cardiophylla Heart leaved primrose Annual, Perennial herb  
Camissonia cardiophylla ssp. cardiophylla Heartleaf sun cup Annual, Perennial herb  
Camissonia cardiophylla ssp. robusta Big heartleaf sun cup Annual, Perennial herb  
Camissonia chamaenerioides Long fruit suncup Annual herb  
Camissonia claviformis Brown eyed primrose Annual herb  
Camissonia claviformis ssp. aurantiaca Pinnate leaved primrose Annual herb  
Camissonia claviformis ssp. claviformis Clavate fruited primrose Annual herb  
Camissonia claviformis ssp. cruciformis Cross flowered clavate fruited primrose Annual herb  
Camissonia claviformis ssp. funerea Clavate fruited primrose Annual herb  
Camissonia claviformis ssp. integrior Clavate fruited primrose Annual herb  
Camissonia claviformis ssp. lancifolia Clavate fruited primrose Annual herb  
Camissonia claviformis ssp. peirsonii Peirson's clavate fruited primrose Annual herb  
Camissonia claviformis ssp. yumae Yuma clavate fruited primrose Annual herb  
Camissonia confusa San bernardino sun cup Annual herb  
Camissonia contorta Contorted sun cup Annual herb  
Camissonia graciliflora Hill sun cup Annual herb  
Camissonia guadalupensis ssp. clementina San clemente island evening primrose Annual herb  
Camissonia hardhamiae Hardham's evening primrose Annual herb  
Camissonia heterochroma Shockley's evening primrose Annual herb  
Camissonia hirtella Hairy sun cups Annual herb  
Camissonia ignota Jurupa hills sun cups Annual herb 1
Camissonia intermedia Intermediate sun cups Annual herb  
Camissonia kernensis Kern sun cups Annual herb  
Camissonia kernensis ssp. gilmanii Gilman's evening primrose Annual herb  
Camissonia lacustris Lakebed sun cup Annual herb  
Camissonia lewisii Lewis's evening primrose Annual herb  
Camissonia luciae Santa lucia sun cup Annual herb  
Camissonia micrantha Spencer primrose Annual herb 2
Camissonia minor Nelson's evening primrose Annual herb  
Camissonia munzii Munz's evening primrose Annual herb  
Camissonia pallida Pale yellow sun cup Annual herb 2
Camissonia pallida ssp. hallii Hall's sun cup Annual herb  
Camissonia pallida ssp. pallida Pale sun cup Annual herb  
Camissonia palmeri Palmer's sun cup Annual herb  
Camissonia pterosperma Wing fruit sun cup Annual herb  
Camissonia refracta Narrow leaved primrose Annual herb  
Camissonia robusta Robust sun cup Annual herb  
Camissonia strigulosa Contorted primrose Annual herb  
Camissonia walkeri Walker's suncup Annual, Perennial herb  
Camissonia walkeri ssp. tortilis Walker's sun cup Annual, Perennial herb  
Camissoniopsis bistorta California sun cup Annual herb 5
Camissoniopsis confusa San bernardino sun cup Annual herb  
Camissoniopsis hirtella Hairy sun cup Annual herb  
Camissoniopsis ignota Jurupa hills sun cup Annual herb 1
Camissoniopsis intermedia Intermediate sun cups Annual herb  
Camissoniopsis lewisii Lewis' evening-primrose Annual herb  
Camissoniopsis micrantha Spencer primrose Annual herb 2
Camissoniopsis pallida Pale yellow sun cup Annual herb 2
Camissoniopsis pallida ssp. hallii Hall's sun cup Annual herb  
Camissoniopsis pallida ssp. pallida Pale sun cup Annual herb  
Castilleja densiflora Dense flower owl's clover Annual herb  
Castilleja densiflora ssp. gracilis Graceful owl's clover Annual herb  
Castilleja exserta Owl's clover Annual herb 11
Castilleja exserta ssp. exserta Purple owl's clover Annual herb 5
Castilleja lasiorhyncha San bernardino mtns. owl's clover Annual herb (hemiparasitic)  
Castilleja minor Little paintbrush Annual herb 1
Castilleja minor ssp. minor Lesser paintbrush Annual herb 2
Castilleja minor ssp. spiralis Lesser paintbrush Annual herb  
Caulanthus amplexicaulis Clasping leaved caulanthus Annual herb  
Caulanthus amplexicaulis var. amplexicaulis Clasping leaved caulanthus Annual herb  
Caulanthus cooperi Cooper caulanthus Annual herb  
Caulanthus coulteri var. coulteri Coulter's jewel flower Annual herb  
Caulanthus coulteri var. lemmonii Lemmon's jewel flower Annual herb  
Caulanthus flavescens Yellow california mustard Annual herb 1
Caulanthus hallii Hall's caulanthus Annual herb  
Caulanthus heterophyllus Slender pod jewelflower Annual herb  
Caulanthus heterophyllus var. heterophyllus Slender pod jewelflower Annual herb  
Caulanthus lasiophyllus California mustard Annual herb  
Caulanthus simulans Payson's wild cabbage Annual herb  
Cenchrus spinifex Coastal sandbur Annual grass  
Centaurium davyi Davy's centaury Annual herb 1
Centaurium exaltatum Cancha lagua Annual herb  
Centaurium muehlenbergii Monterey centaury Annual herb 2
Centaurium trichanthum Alkali centaury Annual herb  
Centaurium venustum Beautiful centaury Annual herb  
Centromadia parryi Pappose tarweed Annual herb  
Centromadia parryi ssp. australis Southern tarplant Annual herb 1
Centromadia pungens Common tarweed Annual herb 1
Centromadia pungens ssp. laevis Smooth tarplant Annual herb  
Centromadia pungens ssp. maritima Common tarweed Annual herb  
Centromadia pungens ssp. pungens Common tarweed Annual herb  
Centromadia pungens ssp. septentrionalis Common tarweed Annual herb  
Centrostegia thurberi Thurber spiny herb Annual herb  
Centunculus minimus False pimpernel Annual herb  
Chaenactis artemisiifolia Artemisia leaved chaenactis Annual herb 3
Chaenactis carphoclinia Pebble pincushion Annual herb  
Chaenactis carphoclinia var. carphoclinia Pebble pincushion Annual herb  
Chaenactis carphoclinia var. peirsonii Peirson's pincushion Annual herb  
Chaenactis fremontii Fremont pincushion Annual herb  
Chaenactis glabriuscula Common yellow chaenactis Annual herb 3
Chaenactis glabriuscula var. glabriuscula Common yellow chaenactis Annual herb  
Chaenactis glabriuscula var. lanosa Pincushion flower Annual herb  
Chaenactis macrantha Mohave pincushion Annual herb  
Chaenactis stevioides Esteve pincushion Annual herb 2
Chaenactis xantiana Xantus' chaenactis Annual herb 1
Chamaesyce abramsiana Abrams' prostrate spurge Annual herb  
Chamaesyce glyptosperma Rib seed spurge Annual herb  
Chamaesyce hooveri Hoover's spurge Annual herb  
Chamaesyce micromera Desert spurge Annual herb  
Chamaesyce ocellata Contura creek spurge Annual herb  
Chamaesyce ocellata ssp. arenicola Sand spurge Annual herb  
Chamaesyce ocellata ssp. ocellata Contura creek sandmat Annual herb  
Chamaesyce ocellata ssp. rattanii Stony creek spurge Annual herb  
Chamaesyce parryi Parry's spurge Annual herb  
Chamaesyce platysperma Flat seeded spurge Annual herb  
Chamaesyce revoluta Rolled leaf spurge Annual herb  
Chamaesyce serpens Creeping spurge Annual herb  
Chamaesyce serpyllifolia Thyme leafed spurge Annual herb  
Chamaesyce serpyllifolia ssp. hirtula Hairy thyme leafed spurge Annual herb  
Chamaesyce serpyllifolia ssp. serpyllifolia Thyme leafed spurge Annual herb  
Chamaesyce setiloba Yuma spurge Annual herb  
Chamomilla occidentalis Western chamomile Annual herb  
Chenopodium album var. stevensii Stevens' lambsquarters Annual herb  
Chenopodium atrovirens Dark green goosefoot Annual herb  
Chenopodium berlandieri Pit seed goosefoot Annual herb  
Chenopodium berlandieri var. sinuatum Pitseed goosefoot Annual herb  
Chenopodium berlandieri var. zschackei Pit seed goosefoot Annual herb  
Chenopodium desiccatum Dry goosefoot Annual herb  
Chenopodium fremontii Fremont's goosefoot Annual herb  
Chenopodium hians Gaping goosefoot Annual herb  
Chenopodium incognitum Masked goosefoot Annual herb  
Chenopodium leptophyllum Thin leaved goosefoot Annual herb  
Chenopodium pratericola Meadow goosefoot Annual herb  
Chenopodium rubrum Red goosefoot Annual herb  
Chloropyron maritimum Salt marsh bird's beak Annual herb  
Chloropyron maritimum ssp. maritimum Salt marsh bird's-beak Annual herb  
Chorisiva nevadensis Nevada sumpweed Annual herb  
Chorizanthe brevicornu Brittle spine flower Annual herb  
Chorizanthe brevicornu var. brevicornu Brittle spineflower Annual herb  
Chorizanthe corrugata Wrinkled spineflower Annual herb  
Chorizanthe fimbriata Fringed spineflower Annual herb  
Chorizanthe fimbriata var. fimbriata Fringed spineflower Annual herb  
Chorizanthe fimbriata var. laciniata Lace fringed spineflower Annual herb  
Chorizanthe leptotheca Peninsular spineflower Annual herb  
Chorizanthe parryi Parry's spineflower Annual herb  
Chorizanthe parryi var. parryi Parry's spineflower Annual herb  
Chorizanthe polygonoides Knotweed spineflower Annual herb  
Chorizanthe polygonoides var. longispina Long spined spineflower Annual herb  
Chorizanthe polygonoides var. polygonoides Knotweed spineflower Annual herb  
Chorizanthe procumbens Prostrate spineflower Annual herb  
Chorizanthe rigida Rigid spiny herb Annual herb  
Chorizanthe spinosa Mojave spineflower Annual herb  
Chorizanthe staticoides Turkish rugging Annual herb 3
Chorizanthe uniaristata One awn spineflower Annual herb  
Chorizanthe watsonii Watson's spineflower Annual herb  
Chorizanthe xanti Xantus' spineflower Annual herb  
Chorizanthe xanti var. leucotheca White bracted spineflower Annual herb  
Chorizanthe xanti var. xanti Xantus' spineflower Annual herb  
Chylismia arenaria Sand evening-primrose Annual, Perennial herb  
Chylismia brevipes Yellow cups Annual, Perennial herb 1
Chylismia brevipes ssp. arizonica Annual, Perennial herb  
Chylismia brevipes ssp. brevipes Golden suncup Annual, Perennial herb  
Chylismia brevipes ssp. pallidula Annual, Perennial herb  
Chylismia cardiophylla Heart leaved primrose Annual, Perennial herb  
Chylismia cardiophylla ssp. cardiophylla Heart leaved primrose Annual, Perennial herb  
Chylismia claviformis Clavate fruited primrose Annual, Perennial herb  
Chylismia claviformis ssp. aurantiaca Pinnate leaved primrose Annual, Perennial herb  
Chylismia claviformis ssp. claviformis Browneyes Annual, Perennial herb  
Chylismia claviformis ssp. lancifolia Clavate fruited primrose Annual, Perennial herb  
Chylismia claviformis ssp. peirsonii Peirson's clavate fruited primrose Annual, Perennial herb  
Chylismia claviformis ssp. yumae Yuma clavate fruited primrose Annual, Perennial herb  
Chylismia walkeri Annual, Perennial herb  
Chylismia walkeri ssp. tortilis Annual, Perennial herb  
Cistanthe ambigua Desert cistanthe Annual herb  
Citrullus colocynthis var. citroides Citron Annual herb  
Clarkia biloba ssp. brandegeae Brandegee's two lobed clarkia Annual herb  
Clarkia bottae Punch bowl godetia Annual herb 7
Clarkia cylindrica Speckled clarkia Annual herb  
Clarkia delicata Delicate clarkia Annual herb  
Clarkia dudleyana Dudley's clarkia Annual herb  
Clarkia epilobioides Willow herb clarkia Annual herb  
Clarkia heterandra California gaura Annual herb  
Clarkia lewisii Lewis's clarkia Annual herb 5
Clarkia mosquinii ssp. mosquinii Mosquin's clarkia Annual herb  
Clarkia mosquinii ssp. xerophylla Mosquin's clarkia Annual herb  
Clarkia purpurea Purple clarkia Annual herb 10
Clarkia purpurea ssp. purpurea Purple clarkia Annual herb 2
Clarkia purpurea ssp. quadrivulnera Purple clarkia Annual herb 4
Clarkia purpurea ssp. viminea Large godetia Annual herb  
Clarkia rhomboidea Tongue clarkia Annual herb 1
Clarkia similis Ramona clarkia Annual herb  
Clarkia unguiculata Woodland clarkia Annual herb 20
Clarkia williamsonii Fort Miller clarkia Annual herb 5
Claytonia exigua Little spring beauty Annual herb  
Claytonia exigua ssp. exigua Viridis Annual herb  
Claytonia parviflora Narrow leaved miner's lettuce Annual herb 2
Claytonia parviflora ssp. parviflora Miner'slettuce Annual herb  
Claytonia parviflora ssp. utahensis Streambank springbeauty Annual herb  
Claytonia parviflora ssp. viridis Green miner's lettuce Annual herb 1
Claytonia perfoliata Miner's lettuce Annual herb 5
Claytonia perfoliata ssp. intermontana Miner's lettuce Annual herb  
Claytonia perfoliata ssp. mexicana Southern miner's lettuce Annual herb  
Claytonia perfoliata ssp. perfoliata Claytonia Annual herb  
Claytonia rubra Red stemmed spring beauty Annual herb  
Claytonia rubra ssp. rubra Red stemmed miner's lettuce Annual herb  
Cleome lutea Yellow bee plant Annual herb 1
Cleome platycarpa Golden bee plant Annual herb  
Cleome serrulata Rocky mountain bee plant Annual herb 8
Cleome sparsifolia Fewleaf bee plant Annual herb  
Collinsia bartsiifolia White collinsia Annual herb 1
Collinsia bartsiifolia var. davidsonii Davidson's collinsia Annual herb 1
Collinsia childii Child's collinsia Annual herb  
Collinsia concolor White collinsia Annual herb  
Collinsia heterophylla Chinese houses Annual herb 20
Collinsia heterophylla var. austromontana Southern chinese houses Annual herb  
Collinsia heterophylla var. heterophylla Purple chinese houses Annual herb  
Collinsia parryi Parry's collinsia Annual herb  
Collinsia parviflora Few flowered blue eyed mary Annual herb  
Collinsia stricta Narrow collinsia Annual herb 1
Collomia grandiflora Large flowered collomia Annual herb 3
Convolvulus simulans Small flowered morning glory Annual herb  
Conyza canadensis Canada horseweed Annual herb  
Conyza canadensis var. canadensis Canadian horseweed Annual herb  
Conyza canadensis var. glabrata Canadian horseweed Annual herb  
Conyza coulteri Coulter's horseweed Annual herb  
Cordylanthus eremicus Desert bird's beak Annual herb (hemiparasitic)  
Cordylanthus eremicus ssp. eremicus Desert bird's beak Annual herb (hemiparasitic)  
Cordylanthus maritimus Salt marsh bird's beak Annual herb  
Cordylanthus maritimus ssp. canescens Salt marsh bird's beak Annual herb  
Cordylanthus maritimus ssp. maritimus Salt marsh bird's beak Annual herb (hemiparasitic)  
Cordylanthus maritimus ssp. palustris Point reyes bird's beak Annual herb (hemiparasitic)  
Cordylanthus mollis Soft bird's beak Annual herb  
Cordylanthus mollis ssp. hispidus Hispid bird's beak Annual herb (hemiparasitic)  
Cordylanthus mollis ssp. mollis Soft bird's beak Annual herb (hemiparasitic)  
Cordylanthus nevinii Nevin's bird's beak Annual herb  
Cordylanthus orcuttianus Orcutt's bird's beak Annual herb (hemiparasitic)  
Cordylanthus palmatus Palmate bracted bird's beak Annual herb (hemiparasitic)  
Cordylanthus rigidus Rigid bird's beak Annual herb  
Cordylanthus rigidus ssp. rigidus Rigid bird's beak Annual herb  
Cordylanthus rigidus ssp. setiger Bristly Bird's Beak Annual herb (hemiparasitic)  
Cordylanthus rigidus ssp. setigerus Bird's beak Annual herb  
Cordylanthus tecopensis Tecopa bird's beak Annual herb (hemiparasitic)  
Coreopsis bigelovii Bigelow coreopsis Annual herb 3
Coreopsis californica var. californica California coreopsis Annual herb  
Coreopsis calliopsidea Leafy stemmed coreopsis Annual herb 3
Coreopsis douglasii Douglas' coreopsis Annual herb 1
Coreopsis hamiltonii Mt. hamilton coreopsis Annual herb  
Coreopsis stillmanii Stillman's coreopsis Annual herb 2
Crassula aquatica Aquatic pygmy weed Annual herb  
Crassula connata Sand pygmy weed Annual herb 1
Crassula saginoides Aquatic pygmy weed Annual herb  
Crassula solieri Little pygmy weed Annual herb  
Croton setiger Turkey-mullein Annual herb 4
Croton setigerus Dove weed Annual herb 4
Cryptantha affinis Common cryptantha Annual herb  
Cryptantha angustifolia Narrow leaved forget me not Annual herb  
Cryptantha barbigera Bearded cryptantha Annual herb  
Cryptantha barbigera var. barbigera Bearded cryptantha Annual herb  
Cryptantha barbigera var. fergusoniae Palm springs cryptantha Annual herb  
Cryptantha circumscissa Western forget me not Annual herb  
Cryptantha circumscissa var. circumscissa Cushion cryptantha Annual herb  
Cryptantha clevelandii Common cryptantha Annual herb  
Cryptantha clevelandii var. clevelandii Cleveland's cryptantha Annual herb  
Cryptantha clevelandii var. dissita Serpentine cryptantha Annual herb  
Cryptantha corollata Coast range cryptantha Annual herb  
Cryptantha costata Ashen forget me not Annual herb  
Cryptantha decipiens Gravel cryptantha Annual herb  
Cryptantha dumetorum Bush loving cryptantha Annual herb  
Cryptantha echinella Prickly cryptantha Annual herb  
Cryptantha flaccida Beaked cryptantha Annual herb  
Cryptantha gracilis Slender cryptantha Annual herb  
Cryptantha holoptera Rough stemmed forget me not Annual herb  
Cryptantha inaequata Panamint cryptantha Annual herb  
Cryptantha intermedia Common cryptanth Annual herb  
Cryptantha intermedia var. intermedia Common cryptantha Annual herb  
Cryptantha maritima Guadalupe island cryptantha Annual herb  
Cryptantha micrantha Purple root cryptantha Annual herb  
Cryptantha micrantha var. lepida Mountain red-root cryptantha Annual herb  
Cryptantha micrantha var. micrantha Red-root cryptantha Annual herb  
Cryptantha micromeres Small flowered cryptantha Annual herb  
Cryptantha microstachys Tejon cryptantha Annual herb  
Cryptantha muricata Prickly cryptantha Annual herb 2
Cryptantha muricata var. denticulata Prickly-nut cryptantha Annual herb 2
Cryptantha muricata var. jonesii Jones' cryptantha Annual herb 2
Cryptantha muricata var. muricata Showy prickly-nut cryptantha Annual herb 2
Cryptantha nemaclada Colusa cryptantha Annual herb  
Cryptantha nevadensis Nevada forget me not Annual herb  
Cryptantha nevadensis var. nevadensis Nevada cryptantha Annual herb  
Cryptantha nevadensis var. rigida Rigid cryptantha Annual herb  
Cryptantha oxygona Sharp nut cryptantha Annual herb  
Cryptantha pterocarya Winged nut forget me not Annual herb  
Cryptantha pterocarya var. cycloptera Tuscon cryptantha Annual herb  
Cryptantha pterocarya var. pterocarya Wingnut cryptantha Annual herb  
Cryptantha pterocarya var. purpusii Purpus' cryptantha Annual herb  
Cryptantha rattanii Rattan's cryptantha Annual herb  
Cryptantha similis Cushion cryptantha Annual herb  
Cryptantha simulans Pine cryptantha Annual herb  
Cryptantha torreyana Torrey's cryptantha Annual herb  
Cryptantha utahensis Scented forget me not Annual herb  
Cryptantha wigginsii Wiggins' cryptantha Annual herb  
Cucurbita palmata Coyote melon Annual, Perennial herb  
Cuscuta brachycalyx San joaquin dodder Annual herb, Vine (parasitic)  
Cuscuta californica California dodder Annual herb, Vine (parasitic)  
Cuscuta californica var. apiculata Pointed dodder Annual herb, Vine (parasitic)  
Cuscuta californica var. breviflora California dodder Annual herb, Vine (parasitic)  
Cuscuta californica var. californica Short flowered dodder Annual herb, Vine (parasitic)  
Cuscuta californica var. papillosa Papillate dodder Annual herb, Vine (parasitic)  
Cuscuta campestris Field dodder Annual herb, Vine (parasitic)  
Cuscuta denticulata Desert dodder Annual herb, Vine (parasitic)  
Cuscuta indecora Big seed alfalfa dodder Annual herb, Vine (parasitic)  
Cuscuta indecora var. indecora Big seed alfalfa dodder Annual herb, Vine (parasitic)  
Cuscuta indecora var. neuropetala Nerve petaled dodder Annual herb, Vine (parasitic)  
Cuscuta pentagona Western field dodder Annual herb, Vine (parasitic)  
Cuscuta salina Saltmarsh dodder Annual herb, Vine (parasitic)  
Cuscuta salina var. major Dodder Annual herb, Vine (parasitic)  
Cuscuta salina var. papillata Saltmarsh dodder Annual herb, Vine (parasitic)  
Cuscuta salina var. salina Salt marsh dodder Annual herb, Vine (parasitic)  
Cuscuta subinclusa Canyon dodder Annual herb, Vine (parasitic)  
Cuscuta suksdorfii var. subpedicellata Mountain dodder Annual herb, Vine (parasitic)  
Cuscuta suksdorfii var. suksdorfii Mountain dodder Annual herb, Vine (parasitic)  
Cyperus acuminatus Short pointed cyperus Annual grass  
Cyperus erythrorhizos Red rooted cyperus Annual grass 2
Cyperus odoratus Fragrant flatsedge Annual grass  
Cyperus squarrosus Awned cyperus Annual grass  
Datura discolor Small datura Annual herb 2
Daucus pusillus Wild carrot Annual herb 1
Deinandra bacigalupi Livermore tarplant Annual herb  
Deinandra corymbosa ssp. corymbosa Coastal tarweed Annual herb  
Deinandra corymbosa ssp. macrocephala Coastal tarweed Annual herb  
Deinandra fasciculata Clustered tarweed Annual herb 5
Deinandra increscens ssp. foliosa Leafy tarplant Annual herb  
Deinandra kelloggii Kellogg's tarweed Annual herb 1
Deinandra mohavensis Mojave tarplant Annual herb  
Deinandra paniculata Paniculate tarplant Annual herb 2
Deschampsia danthonioides Annual hairgrass Annual grass  
Descurainia incisa Mountain tansy mustard Annual herb  
Descurainia incisa ssp. filipes Erect fruited mountain tansy mustard Annual herb  
Descurainia nelsonii Annual herb  
Descurainia paradisa ssp. paradisa Paradise tansymustard Annual herb  
Descurainia pinnata Yellow tansy mustard Annual herb  
Descurainia pinnata ssp. brachycarpa Western tansymustard Annual herb  
Descurainia pinnata ssp. glabra Smooth western tansy mustard Annual herb  
Descurainia pinnata ssp. halictorum Alkali western tansy mustard Annual herb  
Descurainia pinnata ssp. intermedia Intermediate western tansy mustard Annual herb  
Descurainia pinnata ssp. menziesii Menzies' tansy mustard Annual herb  
Descurainia pinnata ssp. ochroleuca Western tansymustard Annual herb  
Dicoria canescens Desert dicoria Annual herb  
Diplacus bigelovii Bigelow mimulus Annual herb 2
Diplacus bigelovii var. bigelovii Bigelow's monkeyflower Annual herb  
Diplacus bolanderi Bolander's monkeyflower Annual herb  
Diplacus brevipes Wide throated yellow monkeyflower Annual herb 2
Diplacus fremontii Fremont's monkeyflower Annual herb  
Diplacus johnstonii Johnston's monkeyflower Annual herb  
Diplacus rattanii Rattan's monkeyflower Annual herb  
Diplacus viscidus Viscid monkeyflower Annual herb  
Ditaxis neomexicana Common ditaxis Annual, Perennial herb  
Ditaxis serrata Saw toothed ditaxis Annual, Perennial herb  
Ditaxis serrata var. serrata Saw toothed ditaxis Annual, Perennial herb  
Dithyrea californica Spectacle pod Annual herb  
Dodecahema leptoceras Slender horned spineflower Annual herb  
Downingia bella Hoover's downingia Annual herb  
Downingia concolor Spotted throat downingia Annual herb  
Downingia concolor var. brevior Cuyamaca lake downingia Annual herb  
Downingia cuspidata Toothed downingia Annual herb  
Downingia elegans var. corymbosa Elegant downingia Annual herb  
Downingia elegans var. elegans Elegant calicoflower Annual herb  
Draba cuneifolia Wedge leaved draba Annual herb  
Draba cuneifolia var. cuneifolia Wedgeleaf draba Annual herb  
Draba cuneifolia var. integrifolia Wedgeleaf draba Annual herb  
Draba cuneifolia var. sonorae Sonora draba Annual herb  
Draba stenoloba var. ramosa Alaska draba Annual, Perennial herb  
Draba verna Whitlow grass Annual herb  
Draba verna var. aestivalis Small bruited spring draba Annual herb  
Echinochloa muricata var. microstachya Rough barnyardgrass Annual grass  
Eclipta prostrata False daisy Annual herb 1
Elatine brachysperma Short seed waterwort Annual, Perennial herb  
Elatine californica California waterwort Annual, Perennial herb  
Elatine chilensis Chilean waterwort Annual, Perennial herb (aquatic)  
Elatine gracilis Sierra waterwort Annual, Perennial herb (aquatic)  
Elatine rubella Southwestern waterwort Annual herb  
Eleocharis engelmannii Engelmann's spikerush Annual grass  
Eleocharis flavescens var. thermalis Yellow spikerush Annual grass  
Eleocharis geniculata Bent spikerush Annual grass  
Eleocharis obtusa var. engelmannii Engelmann's spikerush Annual grass  
Eleocharis obtusa var. obtusa Broad spiked spikerush Annual grass 3
Eleocharis thermalis Warm springs spikerush Annual grass  
Emmenanthe penduliflora Whispering bells Annual herb 2
Emmenanthe penduliflora var. penduliflora Whispering bells Annual herb  
Epilobium brachycarpum Willow herb Annual herb 1
Epilobium campestre Smooth boisduvalia Annual herb  
Epilobium densiflorum Willow herb Annual herb  
Epilobium paniculatum var. jucundum Autumn willowherb Annual herb 1
Epilobium pygmaeum Smooth boisduvalia Annual herb  
Eragrostis intermedia Plains lovegrass Annual grass 3
Eragrostis mexicana Mexican lovegrass Annual grass  
Eragrostis mexicana ssp. mexicana New mexico lovegrass Annual grass  
Eragrostis mexicana ssp. virescens Orcutt's eragrostis Annual grass  
Eragrostis pectinacea Tufted lovegrass Annual grass  
Eragrostis pectinacea var. miserrima Desert lovegrass Annual grass  
Eragrostis pectinacea var. pectinacea Tufted lovegrass Annual grass  
Eremalche exilis White mallow Annual herb  
Eremalche rotundifolia Desert five spot Annual herb  
Eremocarpus setigerus Turkey mullein Annual herb 4
Eremothera boothii Booth's sun cup Annual herb  
Eremothera boothii ssp. alyssoides Pine creek evening-primrose Annual herb  
Eremothera boothii ssp. boothii Booth's evening-primrose Annual herb  
Eremothera boothii ssp. condensata Annual herb  
Eremothera boothii ssp. decorticans Shredding evening-primrose Annual herb  
Eremothera boothii ssp. desertorum Booth's desert primrose Annual herb  
Eremothera chamaenerioides Long fruit suncup Annual herb  
Eremothera refracta Narrow leaved primrose Annual herb  
Eriastrum brandegeae Brandegee's eriastrum Annual herb  
Eriastrum diffusum Miniature wool star Annual herb 1
Eriastrum eremicum Desert woollystar Annual herb  
Eriastrum eremicum ssp. eremicum Desert wool star Annual herb  
Eriastrum filifolium Lavender eriastrum Annual herb  
Eriastrum harwoodii Harwood's eriastrum Annual herb  
Eriastrum luteum Yellow flowered eriastrum Annual herb  
Eriastrum sapphirinum Sapphire eriastrum Annual herb 1
Eriastrum sapphirinum ssp. dasyanthum Sapphire woollystar Annual herb  
Eriastrum sapphirinum ssp. sapphirinum Sapphire woollystar Annual herb  
Eriastrum sparsiflorum Great basin eriastrum Annual herb  
Eriastrum virgatum Virgate eriastrum Annual herb  
Erigeron canadensis Canada horseweed Annual herb  
Erigeron strigosus var. septentrionalis Prairie fleabane Annual, Perennial herb  
Eriochloa acuminata Tapertip cupgrass Annual grass  
Eriochloa acuminata var. acuminata Taper tipped cupgrass Annual grass  
Eriochloa aristata Bearded cupgrass Annual grass  
Eriochloa aristata var. aristata Pointed cupgrass Annual grass  
Eriogonum angulosum Angled stem buckwheat Annual herb  
Eriogonum apiculatum San jacinto buckwheat Annual herb  
Eriogonum apiculatum var. apiculatum Annual herb  
Eriogonum baileyi Bailey buckwheat Annual herb  
Eriogonum baileyi var. baileyi Bailey's buckwheat Annual herb  
Eriogonum brachyanthum Yellow buckwheat Annual herb  
Eriogonum cernuum var. cernuum Nodding buckwheat Annual herb  
Eriogonum cernuum var. viminale Nodding buckwheat Annual herb  
Eriogonum cithariforme Cithara buckwheat Annual herb  
Eriogonum cithariforme var. agninum Cithara buckwheat Annual herb  
Eriogonum cithariforme var. cithariforme Cithara buckwheat Annual herb  
Eriogonum clavatum Hoover's buckwheat Annual herb  
Eriogonum davidsonii Davidson buckwheat Annual herb 2
Eriogonum deflexum Flat topped buckwheat Annual herb  
Eriogonum deflexum var. baratum Flat topped buckwheat Annual herb  
Eriogonum deflexum var. deflexum Flat topped buckwheat Annual herb  
Eriogonum deflexum var. rectum Flat topped buckwheat Annual herb  
Eriogonum evanidum Vanishing wild buckwheat Annual herb  
Eriogonum foliosum Leafy buckwheat Annual herb  
Eriogonum gracile Slender buckwheat Annual herb 3
Eriogonum gracile var. gracile Slender buckwheat Annual herb  
Eriogonum gracile var. incultum Slender buckwheat Annual herb  
Eriogonum gracillimum Rose and white buckwheat Annual herb 1
Eriogonum maculatum Angle stermed buckwheat Annual herb  
Eriogonum mohavense Western mojave buckwheat Annual herb  
Eriogonum molestum Pineland buckwheat Annual herb  
Eriogonum nidularium Whisk broom Annual herb  
Eriogonum nudum var. pubiflorum Hairy flowered buckwheat Annual herb  
Eriogonum palmerianum Palmer's buckwheat Annual herb  
Eriogonum parishii Parish's buckwheat Annual herb 1
Eriogonum puberulum Downy buckwheat Annual herb  
Eriogonum pusillum Yellow turban Annual herb  
Eriogonum reniforme Kidney leaf buckwheat Annual herb  
Eriogonum roseum Wand buckwheat Annual herb 2
Eriogonum thomasii Thomas eriogonum Annual herb  
Eriogonum thurberi Thurber eriogonum Annual herb  
Eriogonum trichopes Little desert buckwheat Annual herb  
Eriogonum trichopes var. hooveri Hoover's buckwheat Annual herb  
Eriogonum trichopes var. trichopes Little desert buckwheat Annual herb  
Eriogonum vimineum Wicker stemmed eriogonum Annual herb 2
Eriogonum viridescens Bright green buckwheat Annual herb  
Eriophyllum ambiguum Annual woolly sunflower Annual herb  
Eriophyllum ambiguum var. ambiguum Annual woolly sunflower Annual herb  
Eriophyllum ambiguum var. paleaceum Annual woolly sunflower Annual herb  
Eriophyllum lanosum White easter bonnets Annual herb  
Eriophyllum multicaule Many stemmed eriophyllum Annual herb  
Eriophyllum pringlei Pringle eriophyllum Annual herb  
Eriophyllum wallacei Wallace eriophyllum Annual herb  
Erodium macrophyllum Large leaved filaree Annual herb  
Erodium texanum Desert heron's bill Annual herb  
Eryngium aristulatum var. parishii San diego button celery Annual, Perennial herb  
Erythranthe androsacea Androsace monkeyflower Annual herb  
Erythranthe breweri Brewer's monkeyflower Annual herb  
Erythranthe diffusa Palomar monkeyflower Annual herb  
Erythranthe floribunda Many flowered monkey flower Annual herb 1
Erythranthe guttata Yellow monkey flower Annual, Perennial herb (rhizomatous) 37
Erythranthe latidens Broad toothed monkeyflower Annual herb  
Erythranthe microphylla Small leaved monkeyflower Annual herb  
Erythranthe parishii Parish mimulus Annual herb  
Erythranthe purpurea little purple monkeyflower Annual herb  
Erythranthe rubella Red stemmed himulus Annual herb  
Erythranthe suksdorfii Suksdorf's monkeyflower Annual herb  
Eschscholzia androuxii Joshua tree poppy Annual herb  
Eschscholzia caespitosa Tufted eschscholzia Annual herb 14
Eschscholzia californica California poppy Annual, Perennial herb 49
Eschscholzia glyptosperma Desert gold poppy Annual herb  
Eschscholzia minutiflora Coville s poppy Annual herb  
Eschscholzia minutiflora ssp. covillei Coville's pygmy poppy Annual herb  
Eschscholzia minutiflora ssp. minutiflora Pygmy poppy Annual herb  
Eschscholzia papastillii Cryptic desert poppy Annual herb  
Eschscholzia parishii Pygmy poppy Annual herb  
Eucrypta chrysanthemifolia Spotted eucrypta Annual herb 2
Eucrypta chrysanthemifolia var. bipinnatifida Torrey eucrypta Annual herb  
Eucrypta chrysanthemifolia var. chrysanthemifolia Common eucrypta Annual herb  
Eucrypta micrantha Desert eucrypta Annual herb  
Eulobus californicus California primrose Annual herb 1
Euphorbia abramsiana Abrams' spurge Annual herb  
Euphorbia crenulata Chinesecaps Annual, Perennial herb  
Euphorbia eriantha Beetle spurge Annual herb  
Euphorbia micromera Sonoran sandmat Annual herb  
Euphorbia ocellata Contura creek spurge Annual herb  
Euphorbia ocellata ssp. arenicola Dune spurge Annual, Perennial herb  
Euphorbia ocellata ssp. ocellata Valley spurge Annual, Perennial herb  
Euphorbia platysperma Flat-seeded spurge Annual herb  
Euphorbia revoluta Revolute spurge Annual herb  
Euphorbia serpens Matted sandmat Annual herb  
Euphorbia serpillifolia Thyme-leafed spurge Annual herb  
Euphorbia serpillifolia ssp. serpillifolia Annual, Perennial herb  
Euphorbia setiloba Yuma sandmat Annual herb  
Euphorbia spathulata Reticulate seeded spurge Annual herb  
Eustoma exaltatum Catchfly prairie gentian Annual, Perennial herb  
Festuca microstachys Small fescue Annual grass 7
Festuca octoflora Sixweeks grass Annual grass 5
Filago arizonica Arizona filago Annual herb  
Filago californica California filago Annual herb  
Filago depressa Dwarf filago Annual herb  
Galium aparine Cleavers Annual herb  
Gaura coccinea Scarlet gaura Annual, Perennial herb  
Gayophytum decipiens Deceiving gayophytum Annual herb  
Gayophytum diffusum Spreading groundsmoke Annual herb  
Gayophytum diffusum ssp. parviflorum Small flowered groundsmoke Annual herb  
Gayophytum heterozygum Zig zag gayophytum Annual herb  
Gayophytum humile Dwarf groundsmoke Annual herb  
Gayophytum oligospermum Pinegrove gayophytum Annual herb  
Gayophytum racemosum Black foot gayophytum Annual herb  
Gayophytum ramosissimum Pinyon gayophytum Annual herb  
Gentianella tenella ssp. tenella Dane's dwarf gentian Annual herb  
Geraea canescens Hairy desert sunflower Annual herb 1
Geranium carolinianum Carolina geranium Annual herb  
Gilia achilleifolia California gilia Annual herb 2
Gilia achilleifolia ssp. multicaulis Many stemmed gilia Annual herb  
Gilia angelensis Chaparral gilia Annual herb  
Gilia australis Splendid gilia Annual herb  
Gilia brecciarum Small gilia Annual herb  
Gilia brecciarum ssp. jacens Nevada gilia Annual herb  
Gilia campanulata Bell shape gilia Annual herb  
Gilia capillaris Smooth leaved gilia Annual herb  
Gilia capitata Blue field gilia Annual herb 18
Gilia capitata ssp. abrotanifolia Ball gilia Annual herb  
Gilia capitata ssp. capitata Blue field gilia Annual herb 1
Gilia caruifolia Broad flowered gilia Annual herb  
Gilia clivorum Purple spot gilia Annual herb  
Gilia diegensis Coastal gilia Annual herb  
Gilia filiformis Thread stemmed gilia Annual herb  
Gilia hutchinsifolia Desert pale gilia Annual herb  
Gilia inconspicua Shy gilia Annual herb  
Gilia inyoensis Inyo gilia Annual herb  
Gilia latiflora Broad flowered gilia Annual herb  
Gilia latiflora ssp. davyi Broad flowered gilia Annual herb  
Gilia latiflora ssp. latiflora Holly leaf gilia Annual herb  
Gilia latifolia Troadleaf gilia Annual herb  
Gilia leptalea Bridges' gilia Annual herb  
Gilia leptalea ssp. bicolor Purple throat gilia Annual herb  
Gilia leptalea ssp. leptalea Bridges gilia Annual herb  
Gilia leptantha Fine flower gilia Annual herb 5
Gilia leptomeria Tooth leaved gilia Annual herb  
Gilia lottiae Lott's gilia Annual herb  
Gilia maculata Miniatur gilia Annual herb  
Gilia micromeria Dainty gilia Annual herb  
Gilia minor Little gilia Annual herb  
Gilia modocensis Modoc gilia Annual herb  
Gilia ochroleuca Volcanic gilia Annual herb  
Gilia ochroleuca ssp. bizonata Volcanic gilia Annual herb  
Gilia ochroleuca ssp. exilis Volcanic gilia Annual herb  
Gilia ochroleuca ssp. vivida Volcanic gilia Annual herb  
Gilia ophthalmoides Eyed gilia Annual herb  
Gilia scopulorum Rock gilia Annual herb  
Gilia sinistra Clockwise gilia Annual herb  
Gilia sinistra ssp. pinnatisecta Cut leaf clockwise gilia Annual herb  
Gilia sinistra ssp. sinistra Clockwise gilia Annual herb  
Gilia sinuata Cinder gilia Annual herb  
Gilia splendens Splendid gilia Annual herb 1
Gilia splendens ssp. grantii Grant's gilia Annual herb  
Gilia splendens ssp. splendens Splendid gilia Annual herb  
Gilia stellata Star gilia Annual herb  
Gilia subacaulis Short stem gilia Annual herb  
Gilia tenerrima Delicate gilia Annual herb  
Gilia tenuiflora Slender flowered gilia Annual herb  
Gilia tetrabreccia Mt. pinos gilia Annual herb  
Gilia tricolor Bird's eyes Annual herb 16
Gilia triodon Sand gilia Annual herb  
Githopsis diffusa San gabriel bluecup Annual herb  
Githopsis diffusa ssp. candida Bluecup Annual herb  
Githopsis diffusa ssp. diffusa Southern blue cup Annual herb  
Githopsis diffusa ssp. filicaulis Mission canyon bluecup Annual herb  
Githopsis diffusa ssp. robusta San gabriel bluecup Annual herb  
Githopsis specularioides Venus' looking glass Annual herb  
Gnaphalium californicum California everlasting Annual, Perennial herb 11
Gnaphalium macounii Macoun's cudweed Annual, Perennial herb  
Gnaphalium palustre Lowland cudweed Annual herb  
Gnaphalium purpureum Purple cudweed Annual, Perennial herb  
Gnaphalium stramineum Cotton batting Annual, Perennial herb 3
Guillenia flavescens Yellow california mustard Annual herb 1
Guillenia lasiophylla Shaggy thelypod Annual herb  
Harpagonella palmeri Palmer's grapplinghook Annual herb  
Helianthus annuus Hairy leaved sunflower Annual herb 17
Helianthus niveus Desert sunflower Annual, Perennial herb 1
Helianthus niveus ssp. canescens Gray desert sunflower Annual, Perennial herb  
Helianthus petiolaris ssp. canescens Gray desert sunflower Annual, Perennial herb  
Heliotropium convolvulaceum Phlox heliotrope Annual herb  
Heliotropium convolvulaceum var. californicum Morning glory heliotrope Annual herb  
Hemizonella minima Opposite leaved tarweed Annual herb  
Hemizonia arida Red rock tarplant Annual herb  
Hemizonia congesta ssp. leucocephala Hayfield tarplant Annual herb  
Hemizonia conjugens Otay tarplant Annual herb  
Hemizonia corymbosa Coastal tarweed Annual herb 2
Hemizonia corymbosa ssp. corymbosa Central coast tarweed Annual herb  
Hemizonia corymbosa ssp. macrocephala Central coast tarweed Annual herb  
Hemizonia fasciculata Common tarweed Annual herb 5
Hemizonia fitchii Spikeweed Annual herb  
Hemizonia floribunda Tecate tarplant Annual herb  
Hemizonia halliana Hall's tarplant Annual herb  
Hemizonia increscens Grassland tarweed Annual herb  
Hemizonia increscens ssp. foliosa Leafy grassland tarweed Annual herb  
Hemizonia increscens ssp. increscens Coast tarplant Annual herb  
Hemizonia increscens ssp. villosa Gaviota tarplant Annual herb  
Hemizonia kelloggii Kellogg's tarweed Annual herb 1
Hemizonia lobbii Three raped tarweed Annual herb  
Hemizonia mohavensis Mojave tarplant Annual herb  
Hemizonia pallida Kern tarweed Annual herb  
Hemizonia paniculata San diego tarweed Annual herb 2
Hemizonia parryi Parry's tarweed Annual herb 1
Hemizonia parryi ssp. australis Southern tarplant Annual herb 1
Hemizonia parryi ssp. congdonii Congdon's tarplant Annual herb  
Hemizonia parryi ssp. parryi Parry's tarweed Annual herb  
Hemizonia parryi ssp. rudis Parry's red tarplant Annual herb  
Hemizonia pentactis Salinas river tarweed Annual herb  
Hemizonia pungens Common spikeweed Annual herb 1
Hemizonia pungens ssp. laevis Smooth tarplant Annual herb  
Hemizonia pungens ssp. maritima Maritime spikeweed Annual herb  
Hemizonia pungens ssp. pungens Common tarweed Annual herb  
Hemizonia pungens ssp. septentrionalis Northern spikeweed Annual herb  
Hesperevax acaulis Dwarf evax Annual herb  
Hesperevax caulescens Hogwallow starfish Annual herb  
Hesperocnide tenella Western stinging nettle Annual herb  
Hesperolinon micranthum Small flower western flax Annual herb  
Heterocodon rariflorum Heterocodon Annual herb  
Heterodraba unilateralis Ladiestongue mustard Annual herb  
Heterotheca grandiflora Telegraph weed Annual, Perennial herb 3
Heterotheca psammophila Camphor weed Annual, Perennial herb 1
Heterotheca sessiliflora Golden aster Annual, Perennial herb 10
Holocarpha obconica ssp. autumnalis Autumn san joaquin tarweed Annual herb  
Holocarpha obconica ssp. obconica San joaquin tarweed Annual herb  
Holocarpha virgata Narrow tarplant Annual herb  
Holocarpha virgata ssp. elongata Graceful tarplant Annual herb  
Hordeum arizonicum Arizona foxtail Annual grass  
Hordeum depressum Alkali barley Annual grass 3
Hordeum intercedens Vernal barley Annual grass 2
Hymenoxys odorata Fragrant bitter weed Annual herb  
Hypericum anagalloides Creeping St. John's wort Annual, Perennial herb 1
Impatiens occidentalis Western touch me not Annual herb  
Ipomopsis depressa Low ipomopsis Annual herb  
Isolepis cernua Low bulrush Annual grass 13
Iva nevadensis Nevada wormwood Annual herb  
Johnstonella costata ribbed cryptantha Annual herb  
Johnstonella holoptera winged cryptantha Annual herb  
Juncus ambiguus Saline toad rush Annual grass  
Juncus bryoides Moss rush Annual grass  
Juncus bufonius Common toad rush Annual grass 6
Juncus bufonius var. bufonius Toad rush Annual grass  
Juncus bufonius var. congestus Clustered toad rush Annual grass 1
Juncus hemiendytus Dwarf rush Annual grass  
Juncus kelloggii Kellogg's dwarf rush Annual grass  
Juncus luciensis Santa lucia rush Annual grass  
Juncus tiehmii Tiehm's rush Annual grass  
Juncus triformis Yosemite dwarf rush Annual grass  
Kallstroemia californica California kallstroemia Annual herb  
Kallstroemia parviflora Few flowered caltrop Annual herb  
Laennecia coulteri Coulter's horseweed Annual herb  
Lagophylla ramosissima Common hareleaf Annual herb  
Lagophylla ramosissima ssp. congesta Clustered hareleaf Annual herb  
Lagophylla ramosissima ssp. ramosissima Common hareleaf Annual herb  
Langloisia setosissima Lilac sunbonnet Annual herb  
Langloisia setosissima ssp. punctata Lilac sunbonnet Annual herb  
Langloisia setosissima ssp. setosissima Bristly langloisia Annual herb  
Lastarriaea coriacea Leather spineflower Annual herb  
Lasthenia californica Goldfields Annual herb 11
Lasthenia californica ssp. californica California goldfields Annual herb 1
Lasthenia coronaria Royal goldfields Annual herb 2
Lasthenia glaberrima Smooth goldfields Annual herb  
Lasthenia glabrata Yellow rayed goldfields Annual herb 8
Lasthenia glabrata ssp. coulteri Goldfields Annual herb  
Lasthenia gracilis Needle goldfields Annual herb  
Lasthenia macrantha Perennial goldfields Annual herb  
Lasthenia macrantha ssp. bakeri Baker's goldfields Annual herb  
Lasthenia macrantha ssp. macrantha Perennial goldfields Annual herb  
Lasthenia microglossa Small rayed goldfields Annual herb  
Layia glandulosa White layia Annual herb 6
Layia platyglossa Tidy tips Annual herb 21
Lembertia congdonii San joaquin woollythreads Annual herb  
Lepidium acutidens Net pepper grass Annual, Perennial herb  
Lepidium densiflorum Common pepper grass Annual herb  
Lepidium densiflorum var. densiflorum Common pepper grass Annual herb  
Lepidium densiflorum var. elongatum Common pepper grass Annual herb  
Lepidium densiflorum var. macrocarpum Bigseed pepper grass Annual herb  
Lepidium densiflorum var. pubecarpum Hairy pepper grass Annual herb  
Lepidium densiflorum var. pubicarpum Annual herb  
Lepidium densiflorum var. ramosum Common pepper grass Annual herb  
Lepidium dictyotum Net pepper grass Annual herb  
Lepidium dictyotum var. acutidens Net pepper grass Annual herb  
Lepidium dictyotum var. dictyotum Net pepper grass Annual herb  
Lepidium flavum Yellow pepper grass Annual herb  
Lepidium flavum var. flavum Yellow pepper grass Annual herb  
Lepidium lasiocarpum Shaggyfruit pepperweed Annual herb  
Lepidium lasiocarpum ssp. lasiocarpum Shaggyfruit pepperweed Annual herb  
Lepidium lasiocarpum var. lasiocarpum Sand peppergrass Annual herb  
Lepidium latipes Dwarf pepper grass Annual herb  
Lepidium latipes var. latipes Dwarf pepper grass Annual herb  
Lepidium nitidum Shining pepper grass Annual herb 2
Lepidium nitidum var. howellii Howell's pepper grass Annual herb 2
Lepidium nitidum var. nitidum Shining pepper grass Annual herb 2
Lepidium nitidum var. oreganum Shining pepper grass Annual herb 2
Lepidium oblongum Veiny pepper grass Annual herb  
Lepidium oblongum var. insulare Veiny pepper grass Annual herb  
Lepidium oblongum var. oblongum Veiny pepper grass Annual herb  
Lepidium ruderale Roadside pepperweed Annual herb  
Lepidium strictum Peppergrass Annual herb  
Lepidium virginicum Wild pepper grass Annual herb  
Lepidium virginicum ssp. menziesii Robinson's pepper grass Annual herb  
Lepidium virginicum var. medium Wild pepper grass Annual herb  
Lepidium virginicum var. pubescens Wild pepper grass Annual herb  
Lepidium virginicum var. robinsonii Robinson's pepper grass Annual herb  
Leptochloa fascicularis Sprangletop Annual grass  
Leptochloa filiformis Red sprangletop Annual grass  
Leptochloa fusca Sprangletop Annual grass  
Leptochloa fusca ssp. fascicularis Bearded sprangletop Annual grass  
Leptochloa fusca ssp. uninervia Mexican sprangletop Annual grass  
Leptochloa mucronata Mucronate sprangletop Annual grass  
Leptochloa panicea Mucronate sprangletop Annual grass  
Leptochloa panicea ssp. brachiata Mucronate sprangeltop Annual grass  
Leptochloa uninervia Sprangletop Annual grass  
Leptosiphon androsaceus False babystars Annual herb 1
Leptosiphon aureus Golden linanthus Annual herb  
Leptosiphon aureus ssp. aureus Golden linanthus Annual herb  
Leptosiphon aureus ssp. decorus Golden linanthus Annual herb  
Leptosiphon bicolor True babystars Annual herb  
Leptosiphon breviculus Mojave linanthus Annual herb  
Leptosiphon ciliatus Whiskerbrush Annual herb 1
Leptosiphon ciliatus ssp. ciliatus Whiskerbrush Annual herb  
Leptosiphon filipes Thread linanthus Annual herb  
Leptosiphon lemmonii Lemmon's linanthus Annual herb  
Leptosiphon liniflorus Narrowflower flaxflower Annual herb  
Leptosiphon parviflorus Variable linanthus Annual herb 1
Leptosiphon pygmaeus Pygmy linanthus Annual herb  
Leptosiphon pygmaeus ssp. continentalis Pygmy linanthus Annual herb  
Leptosiphon pygmaeus ssp. pygmaeus Pygmy leptosiphon Annual herb  
Leptosyne bigelovii Bigelow coreopsis Annual herb 3
Leptosyne californica California coreopsis Annual herb  
Leptosyne calliopsidea Leafy stemmed coreopsis Annual herb 3
Leptosyne douglasii Douglas' coreopsis Annual herb 1
Lesquerella tenella Little bladderpod Annual herb  
Lessingia glandulifera Valley vinegar weed Annual herb  
Lessingia glandulifera var. glandulifera Sticky lessingia Annual herb  
Lessingia glandulifera var. pectinata Valley lessingia Annual herb  
Lessingia glandulifera var. tomentosa Warner springs lessingia Annual herb  
Lessingia lemmonii Lemmon's lessingia Annual herb  
Lessingia lemmonii var. lemmonii Lemmon's lessingia Annual herb  
Lessingia lemmonii var. peirsonii Peirson's lessingia Annual herb  
Lessingia lemmonii var. ramulosissima Twiggy lemmon's lessingia Annual herb  
Lessingia occidentalis Western lessingia Annual herb  
Lessingia virgata var. virgata Wand lessingia Annual herb  
Lilaea scilloides Flowering quillwort Annual herb (aquatic)  
Limnanthes alba White meadowfoam Annual herb 1
Limnanthes alba ssp. parishii Parish's meadowfoam Annual herb  
Limnanthes gracilis ssp. parishii Parish's meadowfoam Annual herb  
Limnanthes striata Foothill meadowfoam Annual herb  
Limosella acaulis Stemless mudwort Annual herb  
Limosella aquatica Northern mudwort Annual herb (aquatic)  
Linanthus acicularis Bristly linanthus Annual herb  
Linanthus ambiguus Serpentine linanthus Annual herb  
Linanthus androsaceus Common linanthus Annual herb 1
Linanthus arenicola Sand linanthus Annual herb  
Linanthus aureus Golden gilia Annual herb  
Linanthus aureus ssp. aureus Golden linanthus Annual herb  
Linanthus aureus ssp. decorus Cream gilia Annual herb  
Linanthus bellus Desert beauty Annual herb  
Linanthus bicolor True baby stars Annual herb  
Linanthus bigelovii Bigelow's linanthus Annual herb  
Linanthus bolanderi Bolander's linanthus Annual herb  
Linanthus breviculus Mojave linanthus Annual herb  
Linanthus ciliatus Whisker brush linanthus Annual herb 1
Linanthus croceus Annual herb 1
Linanthus dianthiflorus Fringed linanthus Annual herb 1
Linanthus dichotomus Evening snow Annual herb  
Linanthus dichotomus ssp. dichotomus Evening snow Annual herb  
Linanthus filiformis Yellow gilia Annual herb  
Linanthus filipes Filiform linanthus Annual herb  
Linanthus grandiflorus Large flower linanthus Annual herb 15
Linanthus harknessii Harkness linanthus Annual herb  
Linanthus jepsonii Jepson's linanthus Annual herb  
Linanthus jonesii Jones linanthus Annual herb  
Linanthus latisectus Napa linanthus Annual herb  
Linanthus lemmonii Lemmon's linanthus Annual herb  
Linanthus liniflorus Flax flowered linanthus Annual herb  
Linanthus maculatus Little san bernardino mtns. linanthus Annual herb  
Linanthus maculatus ssp. maculatus Little San Bernardino Mtns. linanthus Annual herb  
Linanthus montanus Mustang clover Annual herb  
Linanthus nudatus Tehachapi linanthus Annual herb  
Linanthus oblanceolatus Sierra nevada linanthus Annual herb  
Linanthus orcuttii Orcutt's linanthus Annual herb  
Linanthus parryae Parry's linanthus Annual herb 2
Linanthus parviflorus Common linanthus Annual herb 1
Linanthus pygmaeus Pygmy linanthus Annual herb  
Linanthus pygmaeus ssp. continentalis Pygmy linanthus Annual herb  
Linanthus pygmaeus ssp. pygmaeus Typical pygmy linanthus Annual herb  
Linanthus rattanii Rattan's linanthus Annual herb  
Linanthus rosaceus Rose linanthus Annual herb  
Linanthus septentrionalis Northern linanthus Annual herb  
Linanthus serrulatus Madera linanthus Annual herb  
Linaria canadensis Toad flax Annual, Perennial herb  
Linaria canadensis var. texana Toad flax Annual, Perennial herb  
Lindernia dubia var. anagallidea False pimpernel Annual herb  
Lindernia dubia var. dubia False pimpernel Annual herb  
Lipocarpha micrantha Small flowered hemicarpha Annual grass  
Lipocarpha occidentalis Western hemicarpha Annual grass  
Loeflingia squarrosa Spreading loeflingia Annual herb  
Loeflingia squarrosa var. squarrosa California loeflingia Annual herb  
Loeseliastrum matthewsii Desert calico Annual herb 1
Loeseliastrum schottii Schott gilia Annual herb  
Logfia arizonica Arizona cottonrose Annual herb  
Logfia depressa Dwarf cottonrose Annual herb  
Logfia filaginoides California cottonrose Annual herb  
Lotus denticulatus Toothed lotus Annual herb  
Lotus hamatus Small flowered lotus Annual herb 2
Lotus humistratus Short podded lotus Annual herb  
Lotus micranthus Hill lotus Annual herb  
Lotus nuttallianus Nuttall's lotus Annual herb  
Lotus purshianus Bird's foot trefoil Annual herb 6
Lotus purshianus var. purshianus Spanish lotus Annual herb  
Lotus rubriflorus Red flowered lotus Annual herb  
Lotus salsuginosus Coastal lotus Annual herb 2
Lotus salsuginosus var. brevivexillus Coastal lotus Annual herb  
Lotus salsuginosus var. salsuginosus Coastal lotus Annual herb  
Lotus strigosus Strigose lotus Annual herb 3
Lotus unifoliolatus American bird's foot trefoil Annual herb 1
Lotus unifoliolatus var. unifoliolatus American bird's foot trefoil Annual herb  
Lotus wrangelianus Chilean trefoil Annual herb  
Lupinus affinis Fleshy lupine Annual herb  
Lupinus arizonicus Arizona lupine Annual herb 7
Lupinus arizonicus var. arizonicus Arizona lupine Annual herb 7
Lupinus arizonicus var. barbatulus Arizona lupine Annual herb  
Lupinus benthamii var. benthamii Spider lupine Annual herb 3
Lupinus bicolor Lupine Annual, Perennial herb 16
Lupinus concinnus Bajada lupine Annual herb 3
Lupinus hirsutissimus Stinging lupine Annual herb 5
Lupinus microcarpus Chick lupine Annual herb 8
Lupinus microcarpus var. densiflorus Chick lupine Annual herb 12
Lupinus microcarpus var. horizontalis Chick lupine Annual herb  
Lupinus microcarpus var. microcarpus Chick lupine Annual herb 3
Lupinus odoratus Mojave lupine Annual herb 2
Lupinus shockleyi Shockley lupine Annual herb  
Lupinus sparsiflorus Coulter's lupine Annual herb 6
Lupinus sparsiflorus ssp. inopinatus Coulter's lupine Annual herb  
Lupinus sparsiflorus ssp. mohavensis Mojave lupine Annual herb  
Lupinus sparsiflorus ssp. sparsiflorus Coulter's lupine Annual herb  
Lupinus sparsiflorus var. inopinatus Coulter's lupine Annual herb  
Lupinus succulentus Arroyo lupine Annual herb 21
Lupinus truncatus Blunt leaved lupine Annual herb 4
Lysimachia minima Chaffweed Annual herb  
Machaeranthera arida Silver lake daisy Annual herb  
Machaeranthera gracilis Slender goldenweed Annual herb  
Madia doris-nilesiae Niles's madia Annual herb  
Madia elegans Common madia Annual herb 13
Madia elegans ssp. densifolia Leafy common madia Annual herb 11
Madia elegans ssp. elegans Common madia Annual herb 13
Madia elegans ssp. vernalis Spring common madia Annual herb 12
Madia elegans ssp. wheeleri Wheeler's common madia Annual herb 11
Madia exigua Small tarweed Annual herb  
Madia gracilis Gumweed Annual herb 1
Madia hallii Hall's madia Annual herb  
Madia minima Little tarweed Annual herb  
Madia nutans Nodding madia Annual herb  
Madia rammii Ramm's madia Annual herb  
Madia stebbinsii Stebbins's madia Annual herb  
Madia yosemitana Yosemite madia Annual herb  
Malacothrix californica Desert dandelion Annual herb  
Malacothrix clevelandii Cleveland's malacothrix Annual herb  
Malacothrix coulteri Snake's head Annual herb 1
Malacothrix glabrata Desert dandelion Annual herb 4
Malacothrix stebbinsii Stebbins' dandelion Annual herb  
Matricaria discoidea Pineapple weed Annual herb 3
Matricaria occidentalis Valley mayweed Annual herb  
Meconella denticulata Small flowered meconella Annual herb  
Meconella linearis Narrow leaved meconella Annual herb  
Mentzelia affinis Yellow comet Annual herb  
Mentzelia albicaulis White stemmed blazing star Annual herb 2
Mentzelia congesta Clustered blazing star Annual herb  
Mentzelia desertorum Desert blazing star Annual herb  
Mentzelia dispersa Scattered blazing star Annual herb  
Mentzelia involucrata Sand blazing star Annual herb  
Mentzelia involucrata var. involucrata Whitebract blazingstar Annual herb  
Mentzelia involucrata var. megalantha Bracted blazing star Annual herb  
Mentzelia jonesii Jones' blazing star Annual herb, Vine  
Mentzelia lindleyi Lindley's blazing star Annual herb 7
Mentzelia micrantha Small flowered stickleaf Annual herb 2
Mentzelia montana Mountain blazing star Annual herb  
Mentzelia nitens Shining blazing star Annual herb  
Mentzelia obscura Pacific blazing star Annual herb  
Mentzelia pectinata San joaquin blazing star Annual herb  
Mentzelia tricuspis Three pointed blazing star Annual herb  
Mentzelia tridentata Dentate blazing star Annual herb  
Mentzelia veatchiana Veatch's blazing star Annual herb  
Micromonolepis pusilla Dwarf monolepis Annual herb  
Micropus californicus Q tips Annual herb 1
Micropus californicus var. californicus Slender cottonweed Annual herb  
Microseris campestris San joaquin microseris Annual herb  
Microseris douglasii Douglas' microseris Annual herb 1
Microseris douglasii ssp. douglasii Douglas' microseris Annual herb 1
Microseris douglasii ssp. platycarpha Small flowered microseris Annual herb  
Microseris douglasii ssp. tenella Short scaled microseris Annual herb  
Microseris elegans Elegant silverpuffs Annual herb  
Microsteris gracilis Slender phlox Annual herb  
Microsteris gracilis var. gracilis Slender phlox Annual herb  
Microsteris gracilis var. humilior Slender phlox Annual herb  
Mimetanthe pilosa Snouted monkey flower Annual herb  
Mimulus androsaceus Androsace monkeyflower Annual herb  
Mimulus bigelovii Bigelow mimulus Annual herb 2
Mimulus bigelovii var. bigelovii Bigelow's monkeyflower Annual herb  
Mimulus bigelovii var. cuspidatus Bigelow's monkeyflower Annual herb  
Mimulus brachiatus Serpentine monkeyflower Annual herb  
Mimulus brevipes Wide throated yellow monkeyflower Annual herb 2
Mimulus breweri Brewer's monkeyflower Annual herb  
Mimulus cleistogamus Selfing monkeyflower Annual herb  
Mimulus constrictus Dense fruited monkeyflower Annual herb  
Mimulus cupriphilus Mcnulty mine monkeyflower Annual herb 37
Mimulus diffusus Palomar monkeyflower Annual herb  
Mimulus floribundus Many flowered monkey flower Annual herb 1
Mimulus fremontii Fremont's monkeyflower Annual herb  
Mimulus fremontii var. fremontii One sided monkeyflower Annual herb  
Mimulus guttatus Yellow monkey flower Annual, Perennial herb (rhizomatous) 37
Mimulus jepsonii Jepson's monkeyflower Annual herb  
Mimulus johnstonii Johnston's monkeyflower Annual herb  
Mimulus latidens Broad toothed monkeyflower Annual herb  
Mimulus layneae Layne's monkeyflower Annual herb  
Mimulus mephiticus Skunky monkeyflower Annual herb  
Mimulus microphyllus Small leaved monkeyflower Annual herb 37
Mimulus palmeri Palmer's monkeyflower Annual herb  
Mimulus parishii Parish mimulus Annual herb 37
Mimulus pilosus Snouted monkey flower Annual herb  
Mimulus purpureus Purple monkeyflower Annual herb  
Mimulus rattanii Rattan's monkeyflower Annual herb  
Mimulus rattanii ssp. decurtatus Santa cruz county monkeyflower Annual herb  
Mimulus rubellus Red stemmed himulus Annual herb  
Mimulus spissus Compact monkeyflower Annual herb  
Mimulus suksdorfii Suksdorf's monkeyflower Annual herb  
Mimulus viscidus Viscid monkeyflower Annual herb  
Mimulus whipplei Whipple's monkeyflower Annual herb 37
Minuartia douglasii Douglas' sandwort Annual herb  
Minuartia pusilla Annual sandwort Annual herb  
Mohavea confertiflora Mojave flower Annual herb  
Monardella breweri Brewer's monardella Annual herb  
Monardella breweri ssp. glandulifera Brewer's monardella Annual herb 1
Monardella breweri ssp. lanceolata Mustang mint Annual herb 1
Monardella douglasii ssp. douglasii Douglas' monardella Annual herb  
Monardella douglasii ssp. venosa Veiny monardella Annual herb  
Monardella lanceolata Mustang mint Annual herb 1
Monardella lanceolata var. glandulifera Mustang monardella Annual herb  
Monardella lanceolata var. lanceolata Mustang monardella Annual herb  
Monardella lanceolata var. microcephala Mustang monardella Annual herb  
Monardella pringlei Pringle's monardella Annual herb  
Monolepis nuttalliana Nuttall's poverty weed Annual herb  
Monolepis pusilla Dwarf poverty weed Annual herb  
Monolopia lanceolata Common monolopia Annual herb 3
Monolopia stricta Crum's monolopia Annual herb 1
Monoptilon bellidiforme Desert star Annual herb  
Monoptilon bellioides Mojave desert star Annual herb  
Montia fontana Water montia Annual herb  
Montia fontana ssp. chondrosperma Water chickweed Annual herb  
Mucronea californica California spineflower Annual herb 2
Mucronea perfoliata Perfoliate spineflower Annual herb  
Muhlenbergia appressa Appressed muhly Annual grass  
Muhlenbergia filiformis Slender muhly Annual, Perennial grass  
Muhlenbergia microsperma Littleseed muhly Annual grass 4
Muhlenbergia minutissima Annual muhly Annual grass  
Myosurus apetalus Mouse tail Annual herb  
Myosurus apetalus var. borealis Bristly mousetail Annual herb  
Myosurus cupulatus Mouse tail Annual herb  
Myosurus minimus Little mouse tail Annual herb  
Myosurus minimus ssp. apus Little mouse tail Annual herb  
Myosurus sessilis Tiny mouse tail Annual herb  
Najas guadalupensis Guadalupe water nymph Annual herb  
Najas marina Marine water nymph Annual herb  
Nama arizonicum Arizona fiddleleaf Annual herb  
Nama demissa Purplemat Annual herb  
Nama demissa var. demissa Purplemat Annual herb  
Nama demissum Purple mat Annual herb  
Nama demissum var. demissum Desert purple mat Annual herb  
Nama depressa Narrow Leaf Nama Annual herb  
Nama hispida var. spathulata Purplemat Annual herb  
Nama hispidum Bristly nama Annual herb  
Nama hispidum var. spathulatum Rough purple mat Annual herb  
Nama pusilla Small Leaf Nama Annual herb  
Nama stenocarpa Mud nama Annual herb  
Nama stenocarpum Mud nama Annual, Perennial herb  
Navarretia atractyloides Holly leaf navarretia Annual herb  
Navarretia capillaris Miniature gilia Annual herb  
Navarretia fossalis Spreading navarretia Annual herb  
Navarretia hamata Hooked navarretia Annual herb  
Navarretia hamata ssp. hamata Hooked navarretia Annual herb  
Navarretia hamata ssp. leptantha Hooked navarretia Annual herb  
Navarretia intertexta Interwoven navarretia Annual herb  
Navarretia intertexta ssp. intertexta Interwoven navarretia Annual herb  
Navarretia intertexta ssp. propinqua Great basin navarretia Annual herb  
Navarretia jaredii Paso robles navarretia Annual herb  
Navarretia leptalea Bridges' pincushionplant Annual herb  
Navarretia leptalea ssp. leptalea Bridges' gilia Annual herb  
Navarretia prostrata Prostrate navarretia Annual herb  
Navarretia sinistra ssp. pinnatisecta Pinnate leaved navarretia Annual herb  
Navarretia sinistra ssp. sinistra Alva day's gilia Annual herb  
Navarretia viscidula ssp. viscidula Sticky pincushionplant Annual herb  
Nemacaulis denudata Woolly heads Annual herb  
Nemacaulis denudata var. denudata Coast woolly heads Annual herb  
Nemacaulis denudata var. gracilis Slender woolly heads Annual herb  
Nemacladus glanduliferus Thread plant Annual herb  
Nemacladus glanduliferus var. glanduliferus Glandular nemacladus Annual herb  
Nemacladus glanduliferus var. orientalis Eastern glandular nemacladus Annual herb  
Nemacladus gracilis Slender nemacladus Annual herb  
Nemacladus longiflorus Thread plant Annual herb  
Nemacladus longiflorus var. breviflorus Long flowered nemacladus Annual herb  
Nemacladus longiflorus var. longiflorus Long flowered nemacladus Annual herb  
Nemacladus orientalis Eastern glandular nemacladus Annual herb  
Nemacladus pinnatifidus Comb leaved nemacladus Annual herb  
Nemacladus ramosissimus Nuttall's nemacladus Annual herb  
Nemacladus rigidus Rigid nemacladus Annual herb  
Nemacladus rubescens Desert nemacladus Annual herb  
Nemacladus rubescens var. rubescens Desert threadplant Annual herb  
Nemacladus rubescens var. tenuis Desert nemacladus Annual herb  
Nemacladus sigmoideus Small flowered nemacladus Annual herb  
Nemacladus tenuis Desert nemacladus Annual herb  
Nemacladus tenuis var. aliformis Annual herb  
Nemacladus tenuis var. tenuis Desert nemacladus Annual herb  
Nemophila menziesii Baby blue eyes Annual herb 19
Nemophila menziesii var. integrifolia Baby blue eyes Annual herb  
Nemophila menziesii var. menziesii Baby blue eyes Annual herb  
Nemophila pedunculata Meadow nemophila Annual herb  
Nemophila pulchella ssp. pulchella Eastwood's nemophila Annual herb  
Nemophila spatulata Sierra nemophila Annual herb  
Nicotiana attenuata Coyote tobacco Annual herb  
Nicotiana bigelovii var. wallacei Indian tobacco Annual herb  
Nicotiana clevelandii Cleveland's tobacco Annual herb  
Nicotiana quadrivalvis Indian tobacco Annual herb 2
Nicotiana quadrivalvis var. wallacei Wallace's tobacco Annual herb  
Nuttallanthus canadensis Canada toadflax Annual, Biennial herb  
Nuttallanthus texanus Blue toadflax Annual, Perennial herb  
Oenothera deltoides Desert lantern Annual herb 6
Oenothera deltoides ssp. deltoides Desert lantern Annual herb  
Oenothera primiveris Yellow desert evening primrose Annual herb  
Oenothera primiveris ssp. bufonis Large yellow desert primrose Annual herb  
Oenothera primiveris ssp. primiveris Yellow desert evening primrose Annual herb  
Oligomeris linifolia Leaved cambess Annual herb  
Orcuttia californica California orcutt grass Annual grass  
Orobanche corymbosa Flat topped broom rape Annual herb  
Osmadenia tenella Osmadenia Annual herb  
Oxalis pilosa Hairy wood sorrel Annual herb  
Oxytheca caryophylloides Chickweed oxytheca Annual herb  
Oxytheca emarginata White margined oxytheca Annual herb  
Oxytheca parishii Parish's oxytheca Annual herb  
Oxytheca parishii var. abramsii Abrams's oxytheca Annual herb  
Oxytheca parishii var. cienegensis Cienega seca oxytheca Annual herb  
Oxytheca parishii var. goodmaniana Cushenbury oxytheca Annual herb  
Oxytheca parishii var. parishii Parish's oxytheca Annual herb  
Oxytheca trilobata Three lobed oxytheca Annual herb  
Palafoxia arida Spanish needle Annual herb  
Palafoxia arida var. arida Desert needle Annual herb  
Palafoxia arida var. gigantea Giant spanish needle Annual, Perennial herb  
Panicum alatum Winged panicgrass Annual grass  
Panicum alatum var. alatum Winged panicgrass Annual grass  
Panicum alatum var. minus Winged panicgrass Annual grass  
Panicum capillare Old witch grass Annual grass 2
Panicum capillare ssp. capillare Annual grass 2
Panicum hirticaule Mexican panicgrass Annual grass  
Panicum hirticaule ssp. hirticaule Roughstalk witch grass Annual grass  
Panicum hirticaule var. hirticaule Mexican panicgrass Annual grass  
Papaver californicum Fire poppy Annual herb 1
Papaver heterophyllum Wind poppy Annual herb 4
Parietaria hespera Pelitory Annual herb  
Parietaria hespera var. californica California pellitory Annual herb  
Parietaria hespera var. hespera Pellitory Annual herb  
Parietaria pensylvanica Pennsylvania pellitory Annual herb  
Parishella californica Mojave dwarf Annual herb  
Parvisedum congdonii Congdon's stonecrop Annual herb  
Parvisedum leiocarpum Lake county stonecrop Annual herb  
Parvisedum pentandrum Central california stonecrop Annual herb  
Parvisedum pumilum Sierra stonecrop Annual herb  
Pectis papposa Manybristle chinchweed Annual herb  
Pectis papposa var. papposa Chinch weed Annual herb  
Pectocarya heterocarpa Chuckwalla pectocarya Annual herb  
Pectocarya linearis Sagebrush combseed Annual herb  
Pectocarya linearis ssp. ferocula Slender comb seed Annual herb  
Pectocarya penicillata Winged pectocarya Annual herb  
Pectocarya peninsularis Baja pectocarya Annual herb  
Pectocarya platycarpa Broad nutted comb bur Annual herb  
Pectocarya recurvata Arch nutted comb bur Annual herb  
Pectocarya setosa Moth combseed Annual herb 1
Pentachaeta aurea Golden rayed pentachaeta Annual herb  
Peritoma lutea Yellow bee plant Annual herb 1
Perityle emoryi Emory's rock daisy Annual herb 3
Persicaria lapathifolia Common knotweed Annual herb  
Petunia parviflora Wild petunia Annual herb  
Phacelia affinis Limestone phacelia Annual herb  
Phacelia affinis var. patens Limestone phacelia Annual herb  
Phacelia bicolor Twocolor phacelia Annual herb  
Phacelia bicolor var. bicolor Two colored phacelia Annual herb  
Phacelia brachyloba Short lobed phacelia Annual herb  
Phacelia campanularia Desert bells Annual herb 17
Phacelia campanularia ssp. campanularia Desert bells Annual herb 1
Phacelia campanularia ssp. vasiformis Desert bluebells Annual herb  
Phacelia campanularia var. campanularia Desert bells Annual herb 1
Phacelia campanularia var. vasiformis Desert bluebells Annual herb  
Phacelia cicutaria Caterpillar phacelia Annual herb 5
Phacelia cicutaria var. cicutaria Caterpillar phacelia Annual herb  
Phacelia cicutaria var. hispida Caterpillar phacelia Annual herb  
Phacelia cicutaria var. hubbyi Hubby's caterpillar phacelia Annual herb  
Phacelia ciliata Great valley phacelia Annual herb 1
Phacelia ciliata var. ciliata Great valley phacelia Annual herb  
Phacelia crenulata Notch leaved phacelia Annual herb 2
Phacelia crenulata var. ambigua Heliotrope phacelia Annual herb  
Phacelia crenulata var. crenulata Heliotrope phacelia Annual herb  
Phacelia crenulata var. minutiflora Little flowered heliotrope phacelia Annual herb  
Phacelia cryptantha Small flowered phacelia Annual herb  
Phacelia curvipes Washoe phacelia Annual herb  
Phacelia davidsonii Davidson's phacelia Annual herb  
Phacelia distans Common phacelia Annual herb 3
Phacelia douglasii Douglas' phacelia Annual herb  
Phacelia douglasii var. douglasii Douglas' phacelia Annual herb  
Phacelia eisenii var. brandegeana Eisen's phacelia Annual herb  
Phacelia fremontii Fremont's phacelia Annual herb 2
Phacelia grandiflora Giant flowered phacelia Annual herb 7
Phacelia hardhamiae Hardham's gray phacelia Annual herb  
Phacelia ivesiana Ives' phacelia Annual herb  
Phacelia ivesiana var. ivesiana Ives' phacelia Annual herb  
Phacelia ivesiana var. pediculoides Ives' phacelia Annual herb  
Phacelia ixodes Costa baja phacelia Annual herb  
Phacelia keckii Santiago peak phacelia Annual herb  
Phacelia lemmonii Lemmon's phacelia Annual herb  
Phacelia minor Wild canterbury bells Annual herb 4
Phacelia neglecta Alkali phacelia Annual herb  
Phacelia pachyphylla Thick leafed phacelia Annual herb  
Phacelia parishii Parish's phacelia Annual herb  
Phacelia parryi Parry's phacelia Annual herb 2
Phacelia pedicellata Specter phacelia Annual herb  
Phacelia rotundifolia Round leafed phacelia Annual herb  
Phacelia stellaris Brand's phacelia Annual herb  
Phacelia suaveolens Sweet scented phacelia Annual herb  
Phacelia suaveolens ssp. keckii Santiago peak phacelia Annual herb  
Phacelia suaveolens var. keckii Santiago peak phacelia Annual herb  
Phacelia suaveolens var. suaveolens Sweet scented phacelia Annual herb  
Phacelia tanacetifolia Tansy leafed phacelia Annual herb 15
Phacelia umbrosa Colorado desert phacelia Annual herb  
Phacelia vallis-mortae Death valley phacelia Annual herb  
Phacelia vallis-mortae var. vallis-mortae Death valley phacelia Annual herb  
Phacelia viscida Sticky phacelia Annual herb 5
Phalaris angusta Timothy canarygrass Annual grass  
Phalaris lemmonii Lemmon's canarygrass Annual grass  
Phaseolus filiformis Slender stem bean Annual herb 1
Phlox gracilis Annual phlox Annual herb  
Pholistoma auritum Fiesta flower Annual herb  
Pholistoma auritum var. auritum Blue fiesta flower Annual herb  
Pholistoma membranaceum White fiesta flower Annual herb  
Pholistoma racemosum San diego fiesta flower Annual herb  
Physalis acutifolia Sharp leaf ground cherry Annual herb  
Physalis angulata Cutleaf groundcherry Annual herb  
Physalis crassifolia Thick leaved ground cherry Annual, Perennial herb  
Physaria tenella Little bladderpod Annual herb  
Plagiobothrys acanthocarpus Adobe allocarya Annual herb  
Plagiobothrys arizonicus Arizona popcorn flower Annual herb  
Plagiobothrys bracteatus Bracted allocarya Annual herb  
Plagiobothrys canescens Valley popcorn Annual herb  
Plagiobothrys canescens var. canescens Valley popcornflower Annual herb  
Plagiobothrys catalinensis Catalina popcorn flower Annual herb  
Plagiobothrys collinus Cooper's popcornflower Annual herb  
Plagiobothrys collinus var. californicus California popcorn flower Annual herb  
Plagiobothrys collinus var. fulvescens Rusty haired popcorn flower Annual herb  
Plagiobothrys collinus var. gracilis Graceful popcorn flower Annual herb  
Plagiobothrys collinus var. ursinus Northern popcorn flower Annual herb  
Plagiobothrys fulvus Fulvous popcorn flower Annual herb  
Plagiobothrys fulvus var. campestris Tawny popcorn flower Annual herb  
Plagiobothrys glomeratus Mammoth popcorn flower Annual herb  
Plagiobothrys jonesii Jones' popcorn flower Annual herb  
Plagiobothrys kingii Great basin popcorn flower Annual herb  
Plagiobothrys leptocladus Alkali plagiobothrys Annual herb  
Plagiobothrys myosotoides Forget me not popcorn flower Annual herb  
Plagiobothrys nothofulvus Rusty haired popcorn flower Annual herb 1
Plagiobothrys parishii Parish's popcorn flower Annual herb  
Plagiobothrys scouleri var. cusickii Cusick's popcornflower Annual herb  
Plagiobothrys scouleri var. hispidulus Sleeping popcornflower Annual herb  
Plagiobothrys stipitatus Vernal pool allocarya Annual herb  
Plagiobothrys stipitatus var. micranthus Common vernal pool allocarya Annual herb  
Plagiobothrys tenellus Slender popcorn flower Annual herb  
Plagiobothrys undulatus Coast allocarya Annual herb  
Planodes virginicum Common rock cress Annual, Perennial herb  
Plantago bigelovii Long leaf plantain Annual herb  
Plantago elongata Coastal plantain Annual herb  
Plantago elongata ssp. pentasperma Five seeded plantain Annual herb  
Plantago erecta California plantain Annual herb 6
Plantago ovata Desert plantain Annual herb 5
Plantago ovata var. fastigiata Desert plantain Annual herb  
Plantago ovata var. insularis Desert plantain Annual herb 5
Plantago patagonica Patagonia plantain Annual herb 1
Platystemon californicus Cream cups Annual herb 4
Plectritis brachystemon Short spurred plectritis Annual herb  
Plectritis ciliosa Long spurred plectritis Annual herb  
Plectritis ciliosa ssp. ciliosa Long spurred plectritis Annual herb  
Plectritis ciliosa ssp. insignis Showy plectritis Annual herb  
Plectritis macrocera Plectritis Annual herb  
Pluchea odorata Salt marsh fleabane Annual, Perennial herb 7
Pluchea odorata var. odorata Salt marsh fleabane Annual, Perennial herb 2
Poa bigelovii Bigelow's blue grass Annual grass  
Poa bolanderi Bolander's bluegrass Annual grass  
Poa howellii Howell's blue grass Annual grass  
Pogogyne douglasii ssp. douglasii Douglas' mesamint Annual herb  
Polanisia dodecandra Redwhisker clammyweed Annual herb 1
Polanisia dodecandra ssp. trachysperma Clammy weed Annual herb  
Polycarpon depressum California polycarpon Annual herb  
Polygonum douglasii Douglas' knotweed Annual herb  
Polygonum douglasii ssp. austiniae Rebecca austin's knotweed Annual herb  
Polygonum douglasii ssp. douglasii Douglas' knotweed Annual herb  
Polygonum douglasii ssp. johnstonii Knotweed Annual herb  
Polygonum douglasii ssp. majus Large douglas' knotweed Annual herb  
Polygonum douglasii ssp. spergulariiforme Spurry knotweed Annual herb  
Polygonum lapathifolium Common knotweed Annual herb  
Polygonum polygaloides Milkwort knotweed Annual herb  
Polygonum polygaloides ssp. kelloggii Kellogg's knotweed Annual herb  
Polygonum sawatchense Knotweed Annual herb  
Polygonum sawatchense ssp. sawatchense Annual, Perennial herb  
Portulaca halimoides Purslane Annual herb  
Prenanthella exigua Thorny skeleton plant Annual herb  
Proboscidea louisianica Ram's horn Annual herb  
Proboscidea parviflora Doubleclaw Annual herb  
Proboscidea parviflora ssp. parviflora Devil's claw Annual herb  
Proboscidea parviflora var. hohokamiana Devil's claw Annual herb  
Psathyrotes ramosissima Turtleback Annual, Perennial herb  
Pseudognaphalium californicum Ladies' tobacco Annual, Perennial herb 11
Pseudorontium cyathiferum Deep canyon snapdragon Annual herb  
Psilocarphus brevissimus Woolly marbles Annual herb  
Psilocarphus brevissimus var. brevissimus Woolly heads Annual herb  
Psilocarphus brevissimus var. multiflorus Delta woolly marbles Annual herb  
Psilocarphus chilensis Round woolly marbles Annual herb  
Psilocarphus tenellus Slender woolly heads Annual herb  
Psilocarphus tenellus var. globiferus Round woolly marbles Annual herb  
Psilocarphus tenellus var. tenellus Slender woolly heads Annual herb  
Pterostegia drymarioides Fairy mist Annual herb  
Rafinesquia californica California chicory Annual herb  
Rafinesquia neomexicana Desert chicory Annual herb 1
Ranunculus hebecarpus Pubescent fruited buttercup Annual herb  
Ranunculus sceleratus Cursed crowfoot Annual herb (aquatic)  
Ranunculus sceleratus var. sceleratus Cursed buttercup Annual herb (aquatic)  
Ranunculus uncinatus var. parviflorus Small flowered hooked fruit buttercup Annual, Perennial herb  
Ranunculus uncinatus var. uncinatus Woodland buttercup Annual, Perennial herb  
Rigiopappus leptocladus Wire weed Annual herb  
Rorippa curvipes Bluntleaf yellow cress Annual herb  
Rorippa curvipes var. curvipes Bluntleaf yellow cress Annual herb  
Rorippa curvipes var. truncata Blunt yellow cress Annual herb  
Rorippa curvisiliqua Curvepod yellow cress Annual, Perennial herb  
Rorippa palustris Bog yellow cress Annual, Perennial herb  
Rorippa palustris ssp. palustris Bog yellowcress Annual, Perennial herb  
Rorippa palustris var. hispida Hispid yellow cress Annual, Perennial herb  
Rorippa palustris var. occidentalis Western bog yellow cress Annual, Perennial herb  
Rorippa sphaerocarpa Round fruit yellow cress Annual herb  
Rumex fueginus Golden dock Annual, Perennial herb  
Rumex maritimus Golden dock Annual, Perennial herb  
Rumex violascens Mexican dock Annual, Perennial herb  
Sagina decumbens Trailing pearlwort Annual herb  
Sagina decumbens ssp. occidentalis Western pearlwort Annual herb  
Saltugilia australis Southern gilia Annual herb  
Saltugilia caruifolia Caraway leaved woodland gilia Annual herb  
Saltugilia latimeri Latimer's woodland gilia Annual herb  
Saltugilia splendens Splendid gilia Annual herb 1
Saltugilia splendens ssp. splendens Splendid gilia Annual herb  
Salvia carduacea Thistle sage Annual herb 7
Salvia columbariae Chia sage Annual herb 12
Salvia columbariae var. columbariae Chia Annual herb 12
Saxifraga bryophora Bud saxifrage Annual herb  
Schoenoplectus saximontanus Rocky mountain bulrush Annual grass  
Scirpus cernuus Low clubrush Annual grass 13
Scirpus koilolepis Keeled bulrush Annual grass  
Scirpus saximontanus Rocky mountain bulrush Annual grass  
Scribneria bolanderi Scribneria Annual grass  
Senecio ammophilus California coast butterweed Annual herb  
Senecio aphanactis California groundsel Annual herb  
Senecio californicus California butterweed Annual herb  
Senecio mohavensis Mohave groundsel Annual herb  
Sesbania exaltata Colorado river hemp Annual herb  
Sesbania herbacea Bigpod sesbania Annual herb  
Sibara rosulata East mojave rock cress Annual herb  
Sibara virginica Common rock cress Annual, Perennial herb  
Sibaropsis hammittii Hammitt's claycress Annual herb  
Sidotheca caryophylloides Chickweed oxytheca Annual herb  
Sidotheca emarginata White margined oxytheca Annual herb  
Sidotheca trilobata Three lobed oxytheca Annual herb  
Silene antirrhina Sleepy catch fly Annual herb  
Silene californica California indian pink Annual herb 1
Silene multinervia Fire following campion Annual herb  
Silene verecunda Dolores campion Annual herb  
Silene verecunda ssp. andersonii Anderson's campion Annual herb  
Silene verecunda ssp. platyota San francisco campion Annual herb  
Solanum americanum White nightshade Annual, Perennial herb 1
Spergularia atrosperma Sand spurrey Annual herb  
Spergularia marina Salt sand spurry Annual herb 1
Spergularia salina Salt sandspurry Annual herb 1
Spermolepis gigantea desert scaleseed Annual herb  
Sphaeralcea coulteri Coulter's globemallow Annual herb 1
Sphaeralcea orcuttii Carrizo mallow Annual, Perennial herb  
Spirodela punctata Dotted duckmeat Annual, Perennial herb  
Stebbinsoseris heterocarpa Grassland stebbinsoseris Annual herb  
Stellaria nitens Shining chickweed Annual herb  
Stephanomeria diegensis San diego wreathplant Annual, Perennial herb  
Stephanomeria exigua Small wirelettuce Annual herb  
Stephanomeria exigua ssp. coronaria White plume wirelettuce Annual herb  
Stephanomeria exigua ssp. deanei Dean's stephanomeria Annual herb  
Stephanomeria exigua ssp. exigua Mitra Annual herb  
Stephanomeria virgata Twiggy wreath plant Annual herb 1
Stephanomeria virgata ssp. pleurocarpa Tall stephanomeria Annual herb  
Stephanomeria virgata ssp. virgata Tall milk aster Annual herb  
Stillingia spinulosa Broad leaved stillingia Annual, Perennial herb  
Streptanthella longirostris Long beaked twist flower Annual herb  
Streptanthus breweri var. breweri Brewer's jewelflower Annual herb  
Streptanthus breweri var. hesperidis Brewer's jewelflower Annual herb  
Streptanthus glandulosus var. hoffmanii Hoffmann's jewelflower Annual herb 1
Streptanthus niger Tiburon jewel flower Annual herb  
Streptanthus tortuosus Jewelweed Annual, Perennial herb  
Streptanthus tortuosus var. flavescens Yellow mountain jewelflower Annual, Perennial herb  
Streptanthus tortuosus var. orbiculatus Mountain jewelflower Annual, Perennial herb  
Streptanthus tortuosus var. suffrutescens Bush mountain jewelflower Annual, Perennial herb  
Streptanthus tortuosus var. tortuosus Mountain jewelflower Annual, Perennial herb  
Stylocline gnaphaloides Everlasting stylocline Annual herb  
Stylocline intertexta Tangled nest straw Annual herb  
Stylocline micropoides Desert nest straw Annual herb  
Stylocline psilocarphoides Peck's stylocline Annual herb  
Stylocline sonorensis Mesquite neststraw Annual herb  
Stylomecon heterophylla Wind poppy Annual herb 4
Suaeda calceoliformis Horned sea blite Annual herb 1
Subularia aquatica var. americana American awlwort Annual herb  
Symphyotrichum frondosum Short rayed alkali aster Annual herb  
Symphyotrichum subspicatum Douglas aster Annual herb 9
Symphyotrichum subulatum Eastern annual saltmarsh aster Annual herb  
Syntrichopappus fremontii Fremont's syntrichopappus Annual herb  
Syntrichopappus lemmonii Lemmon's syntrichopappus Annual herb  
Tetrapteron graciliflorum Hill sun cup Annual herb  
Teucrium cubense Small coastal germander Annual herb  
Teucrium cubense ssp. depressum Lou germander Annual herb  
Teucrium cubense var. densum Small coastal germander Annual herb  
Thysanocarpus curvipes Common fringe pod Annual herb 2
Thysanocarpus curvipes ssp. amplectens Common fringe pod Annual herb  
Thysanocarpus curvipes ssp. curvipes Fringe Pod Annual herb  
Thysanocarpus curvipes ssp. elegans Fringe Pod Annual herb  
Thysanocarpus curvipes ssp. eradiatus Fringe Pod Annual herb  
Thysanocarpus desertorum Narrow leaved lacepod Annual herb  
Thysanocarpus laciniatus Narrow leaved lacepod Annual herb  
Thysanocarpus laciniatus var. hitchcockii Narrow leaved lacepod Annual herb  
Thysanocarpus laciniatus var. laciniatus Narrow leaved lacepod Annual herb  
Thysanocarpus laciniatus var. rigidus Narrow leaved lacepod Annual herb  
Thysanocarpus rigidus Rigid fringepod Annual herb  
Tidestromia lanuginosa ssp. eliassoniana Woolly tidestromia Annual herb  
Tidestromia suffruticosa Honeysweet Annual herb  
Tidestromia suffruticosa var. oblongifolia Honeysweet Annual herb  
Tiquilia nuttallii Nuttall's coldenia Annual herb  
Trianthema portulacastrum Horse purslane Annual herb  
Trichocoronis wrightii Limestone bugheal Annual herb  
Trichocoronis wrightii var. wrightii Wright's trichocoronis Annual herb  
Trichoptilium incisum Yellow head Annual herb  
Trichostema austromontanum Southern bluecurls Annual herb  
Trichostema austromontanum ssp. austromontanum Southern bluecurls Annual herb  
Trichostema austromontanum ssp. compactum Hidden lake bluecurls Annual herb  
Trichostema lanceolatum Vinegarweed Annual herb 2
Trichostema micranthum Small flowered bluecurls Annual herb  
Trichostema oblongum Mountain bluecurls Annual herb  
Trifolium albopurpureum Indian clover Annual herb 2
Trifolium albopurpureum var. albopurpureum Indian clover Annual herb 2
Trifolium albopurpureum var. dichotomum Clover Annual herb  
Trifolium albopurpureum var. olivaceum Owl's clover Annual herb  
Trifolium barbigerum var. andrewsii Gray's clover Annual herb 1
Trifolium barbigerum var. barbigerum Bearded clover Annual herb  
Trifolium ciliolatum Tree clover Annual herb 6
Trifolium depauperatum Dwarf sack clover Annual herb  
Trifolium depauperatum var. amplectens Pale sack clover Annual herb  
Trifolium depauperatum var. hydrophilum Water sack clover Annual herb  
Trifolium depauperatum var. truncatum Dwarf sack clover Annual herb  
Trifolium dichotomum Branched indian clover Annual herb  
Trifolium fucatum Bull clover Annual herb 5
Trifolium gracilentum Pin point clover Annual herb 5
Trifolium gracilentum var. gracilentum Pin point clover Annual herb 5
Trifolium gracilentum var. palmeri Southern island clover Annual herb  
Trifolium microcephalum Small head clover Annual herb 4
Trifolium obtusiflorum Creek clover Annual herb 4
Trifolium variegatum Variegated clover Annual herb 1
Trifolium variegatum var. variegatum Variegated clover Annual herb  
Trifolium willdenovii Tomcat clover Annual herb 8
Triglochin scilloides Flowering-quillwort Annual herb (aquatic)  
Triodanis biflora Venus looking glass Annual herb  
Triodanis perfoliata Clasping venus looking glass Annual herb 1
Tropidocarpum gracile Slender tropidocarpum Annual herb  
Twisselmannia californica King's gold Annual herb  
Uropappus lindleyi Silver puffs Annual herb 1
Verbena bracteata Bracted verbena Annual, Perennial herb  
Verbena menthifolia Mint leafed vervain Annual, Perennial herb  
Veronica peregrina Neckweed Annual herb  
Veronica peregrina ssp. xalapensis Speedwell Annual herb  
Vicia ludoviciana Louisiana vetch Annual herb  
Vicia ludoviciana ssp. ludoviciana Louisiana vetch Annual herb  
Vicia ludoviciana var. ludoviciana Slender vetch Annual herb  
Vulpia microstachys Fescue Annual grass 7
Vulpia microstachys var. ciliata Eastwood fescue Annual grass  
Vulpia microstachys var. confusa Tracy's fescue Annual grass  
Vulpia microstachys var. microstachys Small fescue Annual grass  
Vulpia microstachys var. pauciflora Few flowered fescue Annual grass  
Vulpia octoflora Slender fescue Annual grass 5
Vulpia octoflora var. glauca Sixweeks fescue Annual grass  
Vulpia octoflora var. hirtella Six weeks fescue Annual grass 1
Vulpia octoflora var. octoflora Six weeks fescue Annual grass 1
Wislizenia refracta Jack ass clover Annual herb  
Wislizenia refracta ssp. palmeri Palmer's jackass clover Annual herb  
Wislizenia refracta ssp. refracta Jackass clover Annual herb  
Xanthium strumarium Cocklebur Annual herb  
Yabea microcarpa Hedge parsley Annual herb  
Zeltnera exaltata Cancha lagua Annual herb  
Zeltnera namophila Spring-loving Centaury Annual herb  
Zeltnera venusta Charming centaury Annual herb  
  Lifeform: Biennial4 plants
Descurainia incisa ssp. incisa Mountain tansy mustard Biennial herb  
Erigeron divergens Diffuse daisy Biennial, Perennial herb 3
Gnaphalium ramosissimum Pink everlasting Biennial herb 1
Pseudognaphalium ramosissimum Pink cudweed Biennial herb 1
  Lifeform: Perennial2212 plants
Abronia nana Dwarf sand verbena Perennial herb  
Abronia nana ssp. covillei Coville's dwarf abronia Perennial herb  
Abronia nana var. covillei Coville's dwarf sand verbena Perennial herb  
Abronia umbellata Beach sand verbena Perennial herb 1
Abronia umbellata ssp. breviflora Pink sand verbena Perennial herb  
Abronia umbellata ssp. umbellata Sand verbena Perennial herb  
Abronia umbellata var. umbellata Beach sand verbena Perennial herb  
Abutilon palmeri Palmer's abutilon Perennial herb 16
Achillea millefolium Yarrow Perennial herb 69
Achnatherum aridum Mormon needle grass Perennial grass  
Achnatherum coronatum Giant needlegrass Perennial grass 7
Achnatherum diegoense San diego county needle grass Perennial grass  
Achnatherum hymenoides Indian rice grass Perennial grass 7
Achnatherum latiglume Sierra needlegrass Perennial grass  
Achnatherum latiglumis Sierra needlegrass Perennial grass  
Achnatherum lemmonii Lemmon's stipa Perennial grass 2
Achnatherum lemmonii ssp. lemmonii Lemmon's needlegrass Perennial grass  
Achnatherum lemmonii ssp. pubescens Pubescent needle grass Perennial grass  
Achnatherum lemmonii var. pubescens Pubescent needlegrass Perennial grass  
Achnatherum lettermanii Letterman stipa Perennial grass 1
Achnatherum nelsonii Columbia needlegrass Perennial grass 1
Achnatherum nelsonii ssp. dorei Mountain needlegrass Perennial grass 1
Achnatherum nevadense Sierra needlegrass Perennial grass  
Achnatherum occidentale Western needlegrass Perennial grass 2
Achnatherum occidentale ssp. californicum California needlegrass Perennial grass  
Achnatherum occidentale ssp. occidentale Western needlegrass Perennial grass  
Achnatherum occidentale ssp. pubescens Elmer's needlegrass Perennial grass  
Achnatherum parishii Parish's needlegrass Perennial grass  
Achnatherum pinetorum Pinewoods needlegrass Perennial grass  
Achnatherum speciosum Desert needlegrass Perennial grass 8
Achnatherum stillmanii Stillman's stipa Perennial grass 1
Achnatherum thurberianum Thurber stipa Perennial grass  
Achnatherum webberi Webber's needlegrass Perennial grass  
Acleisanthes longiflora Angel trumpets Perennial herb  
Acmispon argophyllus Silver birds foot trefoil Perennial herb  
Acmispon argophyllus var. argenteus Channel islands silver lotus Perennial herb 1
Acmispon argophyllus var. argophyllus Southern california silver lotus Perennial herb  
Acmispon argyraeus Canyon birdsfoot trefoil Perennial herb  
Acmispon argyraeus var. argyraeus Canyon lotus Perennial herb  
Acmispon glaber Deerweed Perennial herb 21
Acmispon glaber var. brevialatus Short winged deerweed Perennial herb  
Acmispon glaber var. glaber Deerweed Perennial herb  
Acmispon grandiflorus Large leaved lotus Perennial herb 4
Acmispon grandiflorus var. grandiflorus Chaparral lotus Perennial herb 1
Acmispon haydonii Pygmy lotus Perennial herb  
Acmispon heermannii Heermann's lotus Perennial herb 3
Acmispon heermannii var. heermannii Heermann's lotus Perennial herb  
Acmispon heermannii var. orbicularis Round leaved heermann's lotus Perennial herb  
Acmispon nevadensis Sierra lotus Perennial herb  
Acmispon nevadensis var. davidsonii Davidson's sierra nevada lotus Perennial herb  
Acmispon nevadensis var. nevadensis Sierra nevada lotus Perennial herb  
Acmispon procumbens Silky california broom Perennial herb, Shrub  
Acmispon procumbens var. procumbens Silky california broom Perennial herb, Shrub  
Acmispon rigidus Desert lotus Perennial herb  
Aconitum columbianum var. howellii Howell's monkshood Perennial herb  
Acourtia microcephala Sacapellote Perennial herb  
Adenophyllum cooperi Cooper's dogweed Perennial herb  
Adenophyllum porophylloides San felipe dogweed Perennial herb  
Agastache urticifolia Horse mint Perennial herb 6
Agave deserti Desert agave Perennial herb 10
Agave deserti var. deserti Desert agave Perennial herb 1
Agoseris elata Tall agoseris Perennial herb  
Agoseris glauca var. agrestis Field short beaked agoseris Perennial herb  
Agoseris glauca var. laciniata False dandelion Perennial herb  
Agoseris glauca var. monticola Mountain agoseris Perennial herb  
Agoseris grandiflora Giant mountain dandelion Perennial herb 3
Agoseris grandiflora var. grandiflora Giant mountain dandelion Perennial herb  
Agoseris retrorsa Spear leaved agoseris Perennial herb 1
Agrostis exarata Bentgrass Perennial grass 5
Agrostis exarata var. monolepis Spike bentgrass Perennial grass 5
Agrostis humilis Mountain bent grass Perennial grass  
Agrostis idahoensis Colonial bentgrass Perennial grass 3
Agrostis oregonensis Oregon bentgrass Perennial grass  
Agrostis pallens Diego bent grass Perennial grass 15
Agrostis scabra Rough bentgrass Perennial grass 4
Agrostis scabra var. geminata Rough bentgrass Perennial grass 4
Agrostis thurberiana Thurber's bentgrass Perennial grass  
Alisma plantago-aquatica Water plantain Perennial herb (aquatic) 5
Alisma triviale Northern water plantain Perennial herb (aquatic) 5
Allionia incarnata Windmills Perennial herb  
Allionia incarnata var. incarnata Trailing windmills Perennial herb  
Allium atrorubens Dark red onion Perennial herb (bulb)  
Allium atrorubens var. cristatum Crested onion Perennial herb (bulb)  
Allium bisceptrum var. bisceptrum Twin crest onion Perennial herb (bulb)  
Allium burlewii Burlew's onion Perennial herb (bulb) 1
Allium campanulatum Dusky onion Perennial herb (bulb) 1
Allium cratericola Cascade onion Perennial herb (bulb) 2
Allium denticulatum Toothed wild onion Perennial herb (bulb)  
Allium fimbriatum Wild onion Perennial herb (bulb)  
Allium fimbriatum var. fimbriatum Fringed onion Perennial herb (bulb)  
Allium haematochiton Red skinned onion Perennial herb (bulb) 5
Allium lacunosum Pitted onion Perennial herb (bulb)  
Allium lacunosum var. davisiae Davis' pitted onion Perennial herb (bulb)  
Allium lacunosum var. kernense Kern onion Perennial herb (bulb)  
Allium lacunosum var. lacunosum Pitted onion Perennial herb (bulb)  
Allium lacunosum var. micranthum White fringed onion Perennial herb (bulb)  
Allium marvinii Yucaipa onion Perennial herb (bulb) 5
Allium monticola San bernardino mountain onion Perennial herb (bulb)  
Allium munzii Munz's onion Perennial herb (bulb)  
Allium parishii Wild onion Perennial herb (bulb)  
Allium parryi Parry's fringed onion Perennial herb (bulb)  
Allium peninsulare Mexicali onion Perennial herb (bulb)  
Allium peninsulare var. peninsulare Mexicali onion Perennial herb (bulb)  
Allium praecox Early onion Perennial herb (bulb) 3
Allium serra Jeweled onion Perennial herb (bulb) 1
Allium tribracteatum Three bracted onion Perennial herb (bulb)  
Almutaster pauciflorus Alkali marsh aster Perennial herb  
Alopecurus aequalis Sonoma alopecurus Perennial grass  
Amauriopsis dissecta Ragged leaf bahia Perennial herb  
Ambrosia Xplatyspina Perennial herb  
Ambrosia bipinnatifida Beach bur Perennial herb 10
Ambrosia confertiflora Weak leaved burweed Perennial herb  
Ambrosia psilostachya Ragweed Perennial herb 6
Ambrosia pumila San diego ambrosia Perennial herb (rhizomatous) 2
Ambrosia salsola var. fasciculata Burrobrush Perennial herb  
Amsonia tomentosa Gray amsonia Perennial herb  
Anaphalis margaritacea Pearly everlasting Perennial herb 18
Andropogon glomeratus Bushy bluestem Perennial grass 2
Andropogon glomeratus var. pumilus Bushy bluestem Perennial grass  
Andropogon glomeratus var. scabriglumis Beardgrass Perennial grass  
Androstephium breviflorum Small flowered androstephium Perennial herb (bulb)  
Anemone tuberosa Tuber anemone Perennial herb 1
Anemopsis californica Yerba mansa Perennial herb 31
Angelica tomentosa Woolly angelica Perennial herb 2
Antennaria argentea Silvery everlasting Perennial herb  
Antennaria lanata Woolly pussy toes Perennial herb  
Antennaria microphylla Littleleaf pussytoes Perennial herb 5
Antennaria rosea Rosy everlasting Perennial herb 2
Antennaria rosea ssp. confinis Rosy pussytoes Perennial herb  
Antennaria rosea ssp. rosea Rosy pussytoes Perennial herb  
Aphyllon fasciculatum Clustered broomrape Perennial herb (parasitic)  
Apocynum androsaemifolium Spreading dogbane Perennial herb 1
Apocynum cannabinum Indian hemp Perennial herb 10
Aquilegia formosa Columbine Perennial herb 54
Arabis Xdivaricarpa Hybrid drummond's rock cress Perennial herb  
Arabis bodiensis Bodie hills rock cress Perennial herb  
Arabis breweri Brewer's rock cress Perennial herb 1
Arabis breweri var. austiniae Rebecca austin's rock cress Perennial herb  
Arabis breweri var. breweri Brewer's rock cress Perennial herb  
Arabis breweri var. pecuniaria San bernardino rock cress Perennial herb  
Arabis cobrensis Masonic rock cress Perennial herb  
Arabis constancei Constance's rock cress Perennial herb  
Arabis davidsonii Davidson's rock cress Perennial herb  
Arabis dispar Pinyon rock cress Perennial herb  
Arabis drummondii Drummond's rock cress Perennial herb  
Arabis fernaldiana var. stylosa Stylose rock cress Perennial herb  
Arabis glabra Smooth rock cress Perennial herb  
Arabis glabra var. furcatipilis Smooth rock cress Perennial herb  
Arabis glabra var. glabra Smooth rock cress Perennial herb  
Arabis glaucovalvula Blue podded rock cress Perennial herb  
Arabis hirshbergiae Cuyamaca rockcress Perennial herb  
Arabis hirsuta Hairy rock cress Perennial herb 1
Arabis hirsuta var. glabrata Mountain rock cress Perennial herb  
Arabis hirsuta var. pycnocarpa Hairy fruit rock cress Perennial herb  
Arabis hoffmannii Hoffmann's rock cress Perennial herb  
Arabis holboellii Holboell's rock cress Perennial herb  
Arabis holboellii var. pendulocarpa Weeping fruited holboell's rock cress Perennial herb  
Arabis holboellii var. pinetorum Pine rockcress Perennial herb  
Arabis holboellii var. retrofracta Backward splitting holboell's rock cress Perennial herb  
Arabis inyoensis Inyo rock cress Perennial herb  
Arabis johnstonii Johnston's rock cress Perennial herb  
Arabis koehleri Koehler's rockcress Perennial herb  
Arabis koehleri var. stipitata Koehler's stipitate rock cress Perennial herb  
Arabis lemmonii Lemmon's rock cress Perennial herb  
Arabis lemmonii var. depauperata Depauperate rockcress Perennial herb  
Arabis lemmonii var. lemmonii Lemmon's rock cress Perennial herb  
Arabis lyallii Lyall's rock cress Perennial herb 1
Arabis lyallii var. lyallii Lyall's rockcress Perennial herb  
Arabis lyallii var. nubigena Lyall's cloud cress Perennial herb  
Arabis macdonaldiana Mcdonald's rock cress Perennial herb  
Arabis microphylla Littleleaf rockcress Perennial herb  
Arabis microphylla var. microphylla Small leaved rock cress Perennial herb  
Arabis parishii Parish's rock cress Perennial herb  
Arabis pendulina Rabbitear rockcress Perennial herb  
Arabis perennans Rock cress Perennial herb  
Arabis pinzliae Pinzl's rock cress Perennial herb  
Arabis platysperma Broad seeded rock cress Perennial herb  
Arabis platysperma var. howellii Howell's rockcress Perennial herb  
Arabis platysperma var. platysperma Broad seeded rock cress Perennial herb  
Arabis puberula Blue mountain rock cress Perennial herb  
Arabis pulchra Prince s rock cress Perennial herb 2
Arabis pulchra var. gracilis Slender & beautiful rock cress Perennial herb  
Arabis pulchra var. munciensis Darwin rock cress Perennial herb  
Arabis pulchra var. pulchra Beautiful rock cress Perennial herb 1
Arabis pygmaea Tulare county rock cress Perennial herb  
Arabis rectissima Bristlyleaf rockcress Perennial herb  
Arabis rectissima var. rectissima Bristly leaved rock cress Perennial herb  
Arabis repanda Repand rock cress Perennial herb  
Arabis repanda var. greenei Greene's rock cress Perennial herb  
Arabis repanda var. repanda Repand rock cress Perennial herb  
Arabis rollei Siskiyou rock cress Perennial herb  
Arabis serpentinicola Preston peak rock cress Perennial herb  
Arabis shockleyi Shockley's rock cress Perennial herb  
Arabis sparsiflora Sicklepod rock cress Perennial herb 2
Arabis sparsiflora var. arcuata Elegant rockress Perennial herb  
Arabis sparsiflora var. californica California elegant rock cress Perennial herb  
Arabis sparsiflora var. sparsiflora Elegant rock cress Perennial herb 1
Arabis sparsiflora var. subvillosa Hairy stemmed elegant rock cress Perennial herb  
Arabis subpinnatifida Klamath rockcress Perennial herb  
Arabis suffrutescens Woody rock cress Perennial herb  
Arabis suffrutescens var. suffrutescens Woody rockcress Perennial herb  
Arabis tiehmii Tiehm's rock cress Perennial herb  
Aralia californica California spikenard Perennial herb 16
Arceuthobium abietinum Fir dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium californicum Sugar pine dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium campylopodum Pine dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium cyanocarpum Blue berry dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium divaricatum Western dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium littorum Seashore dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium monticola Mountain dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium occidentale Digger pine dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium siskiyouense Siskiyou dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium tsugense Hemlock dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium tsugense ssp. mertensianae Mountain hemlock dwarf mistletoe Perennial herb (parasitic)  
Arceuthobium tsugense ssp. tsugense Hemlock dwarf mistletoe Perennial herb (parasitic)  
Arenaria aculeata Prickly sandwort Perennial herb  
Arenaria congesta Capitate sandwort Perennial herb 1
Arenaria congesta var. charlestonensis Charleston mountains sandwort Perennial herb  
Arenaria congesta var. congesta Capitate sandwort Perennial herb  
Arenaria congesta var. crassula Rough sandwort Perennial herb  
Arenaria congesta var. simulans Capitate sandwort Perennial herb  
Arenaria congesta var. subcongesta Capitate sandwort Perennial herb  
Arenaria congesta var. suffrutescens Suffrutescent sandwort Perennial herb  
Arenaria kingii ssp. compacta King's sandwort Perennial herb  
Arenaria kingii var. glabrescens King's smooth sandwort Perennial herb  
Arenaria lanuginosa ssp. saxosa Spreading sandwort Perennial herb  
Arenaria macradenia Sandwort Perennial herb  
Arenaria macradenia ssp. ferrisiae Ferris' sandwort Perennial herb  
Arenaria macradenia var. arcuifolia Desert sandwort Perennial herb  
Arenaria macradenia var. kuschei Forest camp sandwort Perennial herb  
Arenaria macradenia var. macradenia Desert sandwort Perennial herb  
Arenaria pumicola var. californica Pumice sandwort Perennial herb  
Arenaria ursina Big bear valley sandwort Perennial herb  
Argemone corymbosa Leafy prickly poppy Perennial herb 2
Aristida californica California threeawn Perennial grass  
Aristida californica var. californica California three aw Perennial grass  
Aristida divaricata Poverty three awn Perennial grass  
Aristida orcuttiana Orcutt's threeawn Perennial grass  
Aristida purpurea Purple three awn Perennial grass 18
Aristida purpurea var. fendleriana Fendler three awn Perennial grass  
Aristida purpurea var. longiseta Red three awn Perennial grass 2
Aristida purpurea var. nealleyi Reverchon three awn Perennial grass  
Aristida purpurea var. parishii Parish three awn Perennial grass  
Aristida purpurea var. purpurea Purple three awn Perennial grass 2
Aristida purpurea var. wrightii Wright three awn Perennial grass  
Aristida ternipes Spidergrass Perennial grass 2
Aristida ternipes var. gentilis Spidergrass Perennial grass 2
Arnica Xdiversifolia Rayless arnica Perennial herb  
Arnica amplexicaulis Streambank arnica Perennial herb 3
Arnica chamissonis Chamisso arnica Perennial herb 5
Arnica chamissonis ssp. foliosa Meadow arnica Perennial herb 5
Arnica cordifolia var. cordifolia Heart leaved arnica Perennial herb  
Arnica cordifolia var. pumila Dwarf heart leaved arnica Perennial herb 1
Arnica diversifolia Lawless arnica Perennial herb  
Arnica mollis Cordilleran arnica Perennial herb 1
Arnica parryi ssp. parryi Parry's arnica Perennial herb  
Arnica tomentella Recondite arnica Perennial herb 1
Artemisia campestris ssp. borealis Northern sagewort Perennial herb  
Artemisia campestris var. scouleriana Field sagewort Perennial herb  
Artemisia douglasiana California mugwort Perennial herb 35
Artemisia dracunculus Tarragon Perennial herb 13
Artemisia ludoviciana Silver wormwood Perennial herb 17
Artemisia ludoviciana ssp. albula White hugwort Perennial herb  
Artemisia ludoviciana ssp. incompta Western mugwort Perennial herb  
Artemisia ludoviciana ssp. ludoviciana Silver wormwood Perennial herb 2
Artemisia ludoviciana ssp. mexicana White sagebrush Perennial herb  
Arthrocnemum subterminale Parish's glasswort Perennial herb 4
Aruncus dioicus var. pubescens Goats beard Perennial herb 4
Asclepias asperula Spider milkweed Perennial herb 3
Asclepias californica California milkweed Perennial herb 6
Asclepias californica ssp. greenei Greene's california milkweed Perennial herb 6
Asclepias cryptoceras ssp. davisii Davis' humboldt mountains milkweed Perennial herb  
Asclepias eriocarpa Indian milkweed Perennial herb 8
Asclepias erosa Desert milkweed Perennial herb 1
Asclepias fascicularis narrow leaf milkweed Perennial herb 32
Asclepias subulata Ajamete Perennial herb 7
Asclepias vestita var. parishii Parish's woolly milkweed Perennial herb  
Aster alpigenus var. andersonii Alpine aster Perennial herb 1
Aster ascendens Long leaved aster Perennial herb  
Aster bernardinus San bernardino aster Perennial herb  
Aster breweri Brewer's aster Perennial herb  
Aster brickellioides Rayless leafy aster Perennial herb  
Aster campestris Western meadow aster Perennial herb  
Aster chilensis California aster Perennial herb 37
Aster eatonii Eaton's aster Perennial herb 2
Aster engelmannii Engelmann's aster Perennial herb 2
Aster foliaceus Leafy aster Perennial herb 2
Aster foliaceus var. apricus Parry's leafy aster Perennial herb 1
Aster foliaceus var. lyallii Lyall's leafy aster Perennial herb  
Aster foliaceus var. parryi Parry's aster Perennial herb 1
Aster greatae Greata's aster Perennial herb (rhizomatous)  
Aster integrifolius Entire leaved aster Perennial herb  
Aster lanceolatus ssp. hesperius Western lance leaf aster Perennial herb  
Aster ledophyllus Cascade aster Perennial herb  
Aster lentus Suisun marsh aster Perennial herb (rhizomatous) 2
Aster occidentalis Western mountain aster Perennial herb 1
Aster occidentalis var. occidentalis Western mountain aster Perennial herb  
Aster occidentalis var. yosemitanus Western bog aster Perennial herb  
Aster oregonensis Oregon aster Perennial herb  
Aster pauciflorus Marsh alkali aster Perennial herb  
Aster peirsonii Peirson's oreastrum aster Perennial herb  
Aster radulinus Rough leaved aster Perennial herb 2
Aster scopulorum Lava aster Perennial herb  
Astragalus allochrous Halfmoon milkvetch Perennial herb  
Astragalus allochrous var. playanus Playa milk vetch Perennial herb  
Astragalus bernardinus San bernardino milk vetch Perennial herb  
Astragalus bicristatus Crested milk vetch Perennial herb  
Astragalus brauntonii Braunton's milk vetch Perennial herb  
Astragalus coccineus Scarlet milk vetch Perennial herb  
Astragalus crotalariae Salton milk vetch Perennial herb  
Astragalus deanei Dean's milk vetch Perennial herb  
Astragalus douglasii Douglas's milkvetch Perennial herb  
Astragalus douglasii var. douglasii Douglas's milkvetch Perennial herb  
Astragalus douglasii var. parishii Parish's milk vetch Perennial herb  
Astragalus filipes Narrow pod locoweed Perennial herb  
Astragalus layneae Layne's milk vetch Perennial herb  
Astragalus leucolobus Big bear valley woollypod Perennial herb  
Astragalus magdalenae Satiny milkvetch Perennial herb  
Astragalus magdalenae var. peirsonii Peirson's milk vetch Perennial herb  
Astragalus minthorniae Minthorn's milkvetch Perennial herb  
Astragalus minthorniae var. villosus Minthorn's milk vetch Perennial herb  
Astragalus monoensis var. monoensis Mono milk vetch Perennial herb  
Astragalus monoensis var. ravenii Raven's milk vetch Perennial herb  
Astragalus nuttallii Loco weed Perennial herb 1
Astragalus oocarpus San diego milk vetch Perennial herb  
Astragalus pachypus Thick pod milk vetch Perennial herb  
Astragalus palmeri Palmer locoweed Perennial herb  
Astragalus pomonensis Pomona milk vetch Perennial herb 4
Astragalus preussii Preuss's milk vetch Perennial herb  
Astragalus preussii var. laxiflorus Lancaster milk vetch Perennial herb  
Astragalus purshii Pursh's sheeppod Perennial herb 1
Astragalus purshii var. tinctus Pursh's milk vetch Perennial herb  
Astragalus tricarinatus Triple ribbed milk vetch Perennial herb  
Astragalus trichopodus Santa barbara milk vetch Perennial herb 2
Astragalus trichopodus var. lonchus Southern california milkvetch Perennial herb  
Astragalus trichopodus var. phoxus Santa barbara milk vetch Perennial herb  
Atriplex californica California salt bush Perennial herb 1
Atriplex coulteri Coulter's saltbush Perennial herb  
Ayenia compacta Desert ayenia Perennial herb, Shrub  
Baccharis douglasii Salt marsh baccharis Perennial herb 16
Baccharis glutinosa Salt Marsh baccharis Perennial herb 29
Bahia dissecta Ragged leaf bahia Perennial herb  
Baileya multiradiata Desert marigold Perennial herb 19
Baileya multiradiata var. multiradiata Wild marigold Perennial herb 19
Balsamorhiza hookeri var. lanata Woolly balsamroot Perennial herb  
Balsamorhiza macrolepis var. macrolepis Big scale balsamroot Perennial herb  
Balsamorhiza macrolepis var. platylepis Flat scale balsam root Perennial herb 1
Barbarea orthoceras Winter cress Perennial herb 1
Berula erecta Cut leaved water parsnip Perennial herb 1
Bidens cernua var. cernua Nodding bur marigold Perennial herb  
Bidens laevis Bur marigold Perennial herb 3
Bistorta bistortoides American bistort Perennial herb  
Bloomeria clevelandii San diego goldenstar Perennial herb  
Bloomeria crocea Golden stars Perennial herb 9
Bloomeria crocea var. aurea Common goldenstar Perennial herb  
Bloomeria crocea var. crocea Common goldenstar Perennial herb  
Bloomeria crocea var. montana Mountain goldenstar Perennial herb  
Boechera arcuata Arching rockcress Perennial herb  
Boechera californica California rockcress Perennial herb  
Boechera dispar Pinyon rock cress Perennial herb  
Boechera glaucovalvula Bluepod rockcress Perennial herb  
Boechera hirshbergiae Hirshberg's rockcress Perennial herb  
Boechera inyoensis Inyo rockcress Perennial herb  
Boechera johnstonii Johnston's rockcress Perennial herb  
Boechera lincolnensis Lincoln rockcress Perennial herb  
Boechera microphylla var. microphylla Small-leaved rock cress Perennial herb  
Boechera parishii Parish's rock cress Perennial herb  
Boechera pendulocarpa Dropseed rockcress Perennial herb  
Boechera perennans Perennial rockcress Perennial herb  
Boechera pinetorum Woodland rockcress Perennial herb  
Boechera platysperma Pioneer rockcress Perennial herb  
Boechera pulchra Beautiful rockcress Perennial herb 2
Boechera repanda Yosemite rockcress Perennial herb  
Boechera retrofracta Reflexed rockcress Perennial herb  
Boechera sparsiflora Sicklepod rockcress Perennial herb 2
Boechera xylopoda Bigfoot hybrid rockcress Perennial herb  
Boerhavia coccinea Red boerhaavia Perennial herb  
Bolboschoenus maritimus Alkali bulrush Perennial grass 15
Bolboschoenus maritimus ssp. paludosus Saltmarsh bulrush Perennial grass 14
Bolboschoenus robustus Sturdy bullrush Perennial grass 10
Boschniakia hookeri Small groundcone Perennial herb (parasitic)  
Boschniakia strobilacea Ground cone Perennial herb (parasitic)  
Bothriochloa barbinodis Beard grass Perennial grass 7
Bouteloua curtipendula Side oats grama Perennial grass 16
Bouteloua curtipendula var. caespitosa Side oats grama Perennial grass  
Bouteloua eriopoda Black grama Perennial grass  
Bouteloua gracilis Blue grama Perennial grass 34
Bouteloua trifida Red grama Perennial grass  
Boykinia rotundifolia Round leaved boykinia Perennial herb 3
Brandegea bigelovii Brandegea Perennial herb  
Brickellia californica California brickellia Perennial herb 13
Brickellia californica var. californica California brickellbush Perennial herb 2
Brickellia oblongifolia Mojave brickellbush Perennial herb  
Brickellia oblongifolia var. linifolia Pinon brickellia Perennial herb  
Brickellia watsonii Watson's brickellia Perennial herb  
Brodiaea californica var. californica California brodiaea Perennial herb 7
Brodiaea californica var. leptandra Sonoma brodiaea Perennial herb 1
Brodiaea coronaria Harvest brodiaea Perennial herb (bulb) 3
Brodiaea coronaria ssp. coronaria Harvest brodiaea Perennial herb (bulb) 3
Brodiaea coronaria ssp. rosea Indian valley brodiaea Perennial herb (bulb)  
Brodiaea filifolia Thread leaved brodiaea Perennial herb (bulb) 1
Brodiaea jolonensis Jolon brodiaea Perennial herb 1
Brodiaea orcuttii Orcutt's brodiaea Perennial herb (bulb)  
Brodiaea purdyi Purdy's brodiaea Perennial herb 2
Brodiaea santarosae Santa Rosa basalt brodiaea Perennial herb  
Brodiaea terrestris Dwarf brodiaea Perennial herb 1
Brodiaea terrestris ssp. kernensis Kern dwarf brodiaea Perennial herb  
Brodiaea terrestris ssp. terrestris Dwarf brodiaea Perennial herb  
Bromus anomalus Nodding brome Perennial grass 1
Bromus carinatus California bromegrass Perennial grass 22
Bromus carinatus var. carinatus California brome Perennial grass 22
Bromus carinatus var. marginatus Mountain brome Perennial grass 6
Bromus carinatus var. maritimus Seaside brome Perennial grass 1
Bromus ciliatus Fringed bromegrass Perennial grass 2
Bromus ciliatus var. ciliatus Fringed brome Perennial grass 2
Bromus grandis Tall brome Perennial grass  
Bromus hallii Hall's brome Perennial grass  
Bromus marginatus Mountain brome Perennial grass 6
Bromus porteri Nodding brome Perennial grass 1
Bromus pseudolaevipes Southern chinook brome Perennial grass  
Bromus richardsonii Fringed brome Perennial grass  
Bromus sitchensis Sitka brome Perennial grass 2
Calamagrostis koelerioides Fire reedgrass Perennial grass  
Callitriche hermaphroditica Northern water starwort Perennial herb  
Callitriche heterophylla Water starwort Perennial herb  
Callitriche longipedunculata Longstock water-starwort Perennial herb  
Calochortus albus White fairy lantern Perennial herb 6
Calochortus albus var. albus Fairy lantern Perennial herb 1
Calochortus albus var. rubellus Pink fairy lanterns Perennial herb 6
Calochortus catalinae Catalina mariposa Perennial herb (bulb) 3
Calochortus concolor Golden bowl mariposa Perennial herb 1
Calochortus excavatus Inyo County star tulip Perennial herb (bulb)  
Calochortus flexuosus Winding mariposa Perennial herb  
Calochortus invenustus Plain mariposa Perennial herb 2
Calochortus kennedyi Desert mariposa Perennial herb 1
Calochortus kennedyi var. kennedyi Red mariposa Perennial herb  
Calochortus palmeri Strangling mariposa Perennial herb 1
Calochortus palmeri var. munzii Munz's mariposa lily Perennial herb (bulb) 1
Calochortus palmeri var. palmeri Palmer's mariposa lily Perennial herb (bulb) 1
Calochortus plummerae Plummer's mariposa lily Perennial herb (bulb) 1
Calochortus splendens Splendid mariposa Perennial herb 4
Calochortus striatus Alkali mariposa lily Perennial herb (bulb) 1
Calochortus venustus Butterfly mariposa lily Perennial herb 6
Calochortus weedii Weed's mariposa Perennial herb 1
Calochortus weedii var. intermedius Intermediate mariposa lily Perennial herb (bulb) 1
Calochortus weedii var. vestus Late flowered mariposa lily Perennial herb (bulb) 1
Calochortus weedii var. weedii Weed's mariposa Perennial herb 1
Caltha leptosepala var. biflora Marsh marigold Perennial herb 3
Calyptridium monospermum One seeded pussypaws Perennial herb  
Calystegia longipes Piute morning glory Perennial herb  
Calystegia macrostegia Island morning glory Perennial herb, Vine 16
Calystegia macrostegia ssp. arida Southern california morning glory Perennial herb, Vine  
Calystegia macrostegia ssp. cyclostegia Coast morning glory Perennial herb, Vine 2
Calystegia macrostegia ssp. intermedia South coast morning glory Perennial herb, Vine  
Calystegia macrostegia ssp. macrostegia Island morning glory Perennial herb, Vine 1
Calystegia macrostegia ssp. tenuifolia San diego morning glory Perennial herb, Vine  
Calystegia occidentalis Bush morning glory Perennial herb 2
Calystegia occidentalis ssp. fulcrata Sonora morning glory Perennial herb  
Calystegia occidentalis var. tomentella Kern morning glory Perennial herb  
Calystegia purpurata Smooth western morning glory Perennial herb 4
Calystegia purpurata ssp. purpurata Smooth western morning glory Perennial herb 1
Calystegia sepium Western hedge bindweed Perennial herb 1
Calystegia sepium ssp. binghamiae Santa barbara morning glory Perennial herb (rhizomatous)  
Calystegia sepium ssp. limnophila Marsh morning glory Perennial herb  
Camassia quamash ssp. quamash Common camas Perennial herb 3
Camissonia cheiranthifolia Beach evening primrose Perennial herb 12
Camissonia cheiranthifolia ssp. cheiranthifolia Beach evening primrose Perennial herb 2
Camissonia cheiranthifolia ssp. suffruticosa Shrubby beach primrose Perennial herb  
Camissonia ovata Sun cup Perennial herb 2
Camissonia subacaulis Long leaved suncup Perennial herb  
Camissonia tanacetifolia Tansy leaf evening primrose Perennial herb  
Camissonia tanacetifolia ssp. quadriperforata Sierra valley evening primrose Perennial herb  
Camissonia tanacetifolia ssp. tanacetifolia Tansy leaved suncup Perennial herb  
Camissoniopsis cheiranthifolia Beach evening-primrose Perennial herb 13
Camissoniopsis cheiranthifolia ssp. suffruticosa Shrubby beach primrose Perennial herb  
Campanula californica Swamp harebell Perennial herb (rhizomatous)  
Campanula prenanthoides Nodding harebell Perennial herb 2
Cardamine breweri var. breweri Brewer's bitter cress Perennial herb  
Cardamine breweri var. orbicularis Heart leaved bitter cress Perennial herb  
Cardamine californica Bitter cress Perennial herb  
Cardamine californica var. californica Milk maids Perennial herb  
Cardamine californica var. cardiophylla Milk maids Perennial herb  
Cardamine californica var. cuneata Milk maids Perennial herb  
Cardamine californica var. integrifolia California toothwort Perennial herb  
Cardamine californica var. sinuata Milk maids Perennial herb  
Cardamine cordifolia var. lyallii Lyall's bitter cress Perennial herb  
Cardamine nuttallii var. covilleana Coville's toothwort Perennial herb  
Cardamine nuttallii var. dissecta Tooth leaved nuttall's toothwort Perennial herb  
Cardamine nuttallii var. nuttallii Nuttall's toothwort Perennial herb  
Cardamine pachystigma var. pachystigma Rock toothwort Perennial herb  
Cardionema ramosissimum Sand mat Perennial herb 2
Carex abrupta Abrupt beaked sedge Perennial grass  
Carex albida White sedge Perennial grass (rhizomatous)  
Carex alma Sedge Perennial grass  
Carex amplectens Clasping bract sedge Perennial grass 1
Carex athrostachya Slender leaved sedge Perennial grass 2
Carex barbarae Valley sedge Perennial grass 24
Carex bella Southwestern showy sedge Perennial grass  
Carex bolanderi Bolander's sedge Perennial grass  
Carex breweri var. breweri Brewer's sedge Perennial grass  
Carex buxbaumii Buxbaum's sedge Perennial grass  
Carex capitata ssp. capitata Capitate sedge Perennial grass  
Carex constanceana Contance's sedge Perennial grass  
Carex deflexa Mountain mat sedge Perennial grass  
Carex deflexa var. boottii Mountain mat sedge Perennial grass  
Carex densa Sedge Perennial grass 9
Carex deweyana Dewey sedge Perennial grass 5
Carex deweyana ssp. leptopoda Dewey's taper fruit sedge Perennial grass 3
Carex diandra Lesser panicled sedge Perennial grass 1
Carex douglasii Douglas sedge Perennial grass 1
Carex dudleyi Dudley's sedge Perennial grass 9
Carex eleocharis Spikerush sedge Perennial grass (rhizomatous)  
Carex feta Green sheathed sedge Perennial grass 1
Carex fracta Fragile sheathed sedge Perennial grass 1
Carex garberi Garber's sedge Perennial grass  
Carex gigas Siskiyou sedge Perennial grass (rhizomatous)  
Carex globosa Round fruit sedge Perennial grass 7
Carex hassei Hasse's sedge Perennial grass  
Carex heteroneura Variable nerved sedge Perennial grass  
Carex heteroneura var. epapillosa Smooth nerve sedge Perennial grass  
Carex heteroneura var. heteroneura Vari nerved sedge Perennial grass  
Carex hoodii Hood's sedge Perennial grass  
Carex illota Sheep sedge Perennial grass  
Carex incurviformis var. danaensis Coastal sand sedge Perennial grass (rhizomatous)  
Carex jonesii Jones' sedge Perennial grass  
Carex lemmonii Lemmon's sedge Perennial grass  
Carex lenticularis Lakeshore sedge Perennial grass 1
Carex lenticularis var. lipocarpa Fat fruited sedge Perennial grass 1
Carex luzulina var. ablata American cold loving sedge Perennial grass  
Carex luzulina var. luzulina Wood rush sedge Perennial grass  
Carex mariposana Mariposa sedge Perennial grass  
Carex multicaulis Forest sedge Perennial grass  
Carex multicostata Many ribbed sedge Perennial grass  
Carex nebrascensis Nebraska sedge Perennial grass 2
Carex occidentalis Western sedge Perennial grass  
Carex ovalis Egg sedge Perennial grass 1
Carex pellita Woolly sedge Perennial grass 7
Carex phaeocephala Mountain hare sedge Perennial grass  
Carex praegracilis Field sedge Perennial grass 28
Carex preslii Presl's sedge Perennial grass  
Carex pyrenaica Pyrenean sedge Perennial grass  
Carex pyrenaica ssp. pyrenaica Pyrenean sedge Perennial grass  
Carex rossii Ross' sedge Perennial grass 1
Carex sartwelliana Yosemite sedge Perennial grass  
Carex schottii Schott's sedge Perennial grass  
Carex scirpoidea var. pseudoscirpoidea Western single spike sedge Perennial grass  
Carex senta Rough sedge Perennial grass 3
Carex specifica Narrow fruit sedge Perennial grass  
Carex spissa San Diego sedge Perennial grass 13
Carex subfusca Brown sedge Perennial grass 7
Carex triquetra Triangular fruit sedge Perennial grass  
Carex vesicaria var. major Western blister sedge Perennial grass 2
Carex vesicaria var. vesicaria Inflated sedge Perennial grass 2
Castilleja affinis Indian paintbrush Perennial herb 1
Castilleja affinis ssp. affinis Wight's indian paint brush Perennial herb 1
Castilleja angustifolia Desert paintbrush Perennial herb 2
Castilleja applegatei Wavy leaf paintbrush Perennial herb 2
Castilleja applegatei ssp. martinii Martin's paintbrush Perennial herb 1
Castilleja applegatei ssp. pinetorum Pine wavy leaf paintbrush Perennial herb  
Castilleja chromosa Desert paintbrush Perennial herb 2
Castilleja foliolosa Texas paintbrush Perennial herb 3
Castilleja gleasonii Mt. gleason indian paintbrush Perennial herb (hemiparasitic)  
Castilleja hispida ssp. brevilobata Short lobed indian paintbrush Perennial herb (hemiparasitic)  
Castilleja inflata Indian paintbrush Perennial herb  
Castilleja lanata ssp. hololeuca White felted indian paintbrush Perennial herb (hemiparasitic)  
Castilleja linariifolia Desert paintbursh Perennial herb 2
Castilleja miniata Great red paintbrush Perennial herb 6
Castilleja miniata ssp. miniata Scarlet indian paintbrush Perennial herb  
Castilleja parviflora Mountain paintbrush Perennial herb  
Castilleja parviflora var. parviflora Smallflower indian paintbrush Perennial herb  
Castilleja plagiotoma Mojave indian paintbrush Perennial herb (hemiparasitic)  
Castilleja pruinosa Frosted paintbrush Perennial herb (hemiparasitic)  
Castilleja subinclusa Franciscan paint brush Perennial herb 1
Castilleja subinclusa ssp. subinclusa Long leaf paintbrush Perennial herb 1
Caulanthus crassicaulis var. crassicaulis Thick stemmed caulanthus Perennial herb  
Caulanthus crassicaulis var. glaber Smooth thick stemmed caulanthus Perennial herb  
Caulanthus major var. major Slender wild cabbage Perennial herb  
Caulostramina jaegeri Jaeger's caulostramina Perennial herb  
Centaurium namophilum var. namophilum Spring loving centaury Perennial herb  
Cerastium beeringianum ssp. earlei Bering chickweed Perennial herb 1
Cerastium beeringianum var. capillare Mouse ear chickweed Perennial herb 1
Ceratophyllum demersum Hornwort Perennial herb 1
Chaenactis parishii Parish's chaenactis Perennial herb  
Chaenactis santolinoides Santolina chaenactis Perennial herb  
Chamaesyce albomarginata Rattlesnake weed Perennial herb  
Chamaesyce arizonica Arizona spurge Perennial herb  
Chamaesyce fendleri Fendler's spurge Perennial herb  
Chamaesyce melanadenia Spurge Perennial herb  
Chamaesyce parishii Parish's spurge Perennial herb  
Chamaesyce pediculifera Carrizo mountain spurge Perennial herb  
Chamaesyce polycarpa Small seeded spurge Perennial herb  
Chamaesyce polycarpa var. hirtella Hairy small seeded spurge Perennial herb  
Chamaesyce polycarpa var. polycarpa Small seeded spurge Perennial herb  
Chamaesyce vallis-mortae Death valley spurge Perennial herb  
Chamerion angustifolium Fireweed Perennial herb 14
Chamerion angustifolium ssp. circumvagum Fireweed Perennial herb 2
Chenopodium californicum California goosefoot Perennial herb 1
Chenopodium incanum Mealy goosefoot Perennial herb  
Chimaphila menziesii Little prince's pine Perennial herb  
Chimaphila umbellata Blake's prince's pine Perennial herb  
Chloracantha spinosa Spiny chloracantha Perennial herb  
Chloracantha spinosa var. spinosa Spiny goldenbush Perennial herb  
Chlorogalum parviflorum Small flowered soaproot Perennial herb  
Chlorogalum pomeridianum Amole Perennial herb 19
Chlorogalum pomeridianum var. pomeridianum Common soaproot Perennial herb 1
Chrysothamnus albidus White flowered rabbitbrush Perennial herb  
Chrysothamnus gramineus Panamint rock goldenrod Perennial herb  
Chrysothamnus paniculatus Blackbanded rabbit brush Perennial herb 1
Cicuta douglasii Western water hemlock Perennial herb 1
Cicuta maculata var. maculata Spotted water hemlock Perennial herb  
Cirsium canovirens Gray green thistle Perennial herb  
Cirsium congdonii Congdon's thistle Perennial herb  
Cirsium loncholepis La graciosa thistle Perennial herb  
Cirsium mohavense Mohave thistle Perennial herb  
Cirsium neomexicanum Desert thistle Perennial herb  
Cirsium occidentale Western thistle Perennial herb 8
Cirsium occidentale var. californicum California thistle Perennial herb  
Cirsium occidentale var. coulteri Coulter's thistle Perennial herb  
Cirsium occidentale var. occidentale Cobweb thistle Perennial herb 1
Cirsium occidentale var. venustum Coulter's thistle Perennial herb  
Cirsium scariosum Elk thistle Perennial herb  
Cirsium scariosum var. citrinum Southern meadow thistle Perennial herb  
Cirsium scariosum var. congdonii Elk thistle Perennial herb  
Cirsium subniveum Jackson hole thistle Perennial herb  
Cladium californicum Saw grass Perennial grass  
Clematis lasiantha Pipestem Perennial herb, Vine 27
Clematis ligusticifolia Creek clematis Perennial herb, Vine 33
Clematis ligusticifolia var. brevifolia Western white clematis Perennial herb, Vine 33
Clematis ligusticifolia var. californica California clematis Perennial herb, Vine 33
Clematis ligusticifolia var. ligusticifolia Western white clematis Perennial herb, Vine 33
Clematis pauciflora Virgin's bower Perennial herb, Vine 1
Clinopodium chandleri San miguel savory Perennial herb 6
Corallorhiza maculata Summer coral root Perennial herb  
Corallorhiza striata var. striata Hooded coralroot Perennial herb  
Corallorhiza striata var. vreelandii Striped coral root Perennial herb  
Coreopsis maritima Sea dahlia Perennial herb 5
Corethrogyne filaginifolia Common sandaster Perennial herb 20
Corethrogyne filaginifolia var. filaginifolia Common sandaster Perennial herb 19
Corethrogyne filaginifolia var. incana San diego sand aster Perennial herb 8
Corethrogyne filaginifolia var. linifolia Del mar mesa sand aster Perennial herb 8
Corethrogyne leucophylla Branching beach aster Perennial herb 8
Coryphantha alversonii Foxtail cactus Perennial herb (stem succulent)  
Cressa truxillensis Alkali weed Perennial herb 3
Croton californicus Desert croton Perennial herb 4
Cryptantha flavoculata Rough seed cryptantha Perennial herb  
Cryptantha racemosa Woody forget me not Perennial herb  
Cryptantha sobolifera Sierra perennial cryptantha Perennial herb  
Cucurbita digitata Finger leaved gourd Perennial herb, Vine  
Cucurbita foetidissima Missouri gourd Perennial herb, Vine 4
Cylindropuntia Xmunzii Munz's cholla Perennial herb (stem succulent) 2
Cylindropuntia acanthocarpa Buck horn cholla Perennial herb (stem succulent) 3
Cylindropuntia acanthocarpa var. acanthocarpa Buckhorn cholla Perennial herb (stem succulent) 2
Cylindropuntia californica California cholla Perennial herb (stem succulent) 5
Cylindropuntia californica var. californica California pricklypear Perennial herb (stem succulent) 1
Cylindropuntia californica var. parkeri Brownspined pricklypear Perennial herb (stem succulent) 2
Cylindropuntia chuckwallensis Chuckwalla cholla Perennial herb (stem succulent)  
Cylindropuntia ganderi Gander's buckhorn cholla Perennial herb (stem succulent)  
Cylindropuntia munzii Munz's cholla Perennial herb (stem succulent) 2
Cymopterus multinervatus Arizona cymopterus Perennial herb  
Cymopterus panamintensis Panamint indian parsnip Perennial herb  
Cymopterus panamintensis var. acutifolius Panamint indian parsnip Perennial herb  
Cynanchum utahense Vine milkweed Perennial herb  
Cyperus eragrostis Tall cyperus Perennial grass 12
Cyperus esculentus Nut grass Perennial grass  
Cyperus laevigatus Smooth cyperus Perennial grass  
Cyperus niger Brown cyperus Perennial grass  
Cyperus parishii Parish's flatsedge Perennial grass  
Dalea mollis Silky dalea Perennial herb  
Dalea mollissima Silky dalea Perennial herb  
Danthonia californica var. americana American oatgrass Perennial grass 20
Danthonia californica var. californica California oatgrass Perennial grass 20
Danthonia unispicata One spiked oatgrass Perennial grass  
Dasyochloa pulchella Low woollygrass Perennial grass  
Datisca glomerata Durango root Perennial herb 2
Datura wrightii Jimsonweed Perennial herb 14
Delphinium cardinale Scarlet larkspur Perennial herb 5
Delphinium gypsophilum ssp. gypsophilum Gypsum loving larkspur Perennial herb 1
Delphinium hesperium Western larkspur Perennial herb  
Delphinium hesperium ssp. cuyamacae Cuyamaca larkspur Perennial herb  
Delphinium inflexum Hybrid parry's larkspur Perennial herb 5
Delphinium nuttallianum Nuttall's larkspur Perennial herb 2
Delphinium parishii Parish's larkspur Perennial herb  
Delphinium parishii ssp. parishii Parish's larkspur Perennial herb  
Delphinium parishii ssp. subglobosum Intermediate larkspur Perennial herb  
Delphinium parryi San bernardino larkspur Perennial herb 1
Delphinium parryi ssp. maritimum Seaside larkspur Perennial herb  
Delphinium parryi ssp. parryi San bernardino larkspur Perennial herb  
Delphinium parryi ssp. purpureum Mt. pinos larkspur Perennial herb  
Delphinium patens Spreading larkspur Perennial herb  
Delphinium patens ssp. hepaticoideum Spreading larkspur Perennial herb  
Delphinium patens ssp. montanum Spreading larkspur Perennial herb  
Delphinium variegatum f. superbum Royal larkspur Perennial herb  
Deschampsia atropurpurea Mountain hair grass Perennial grass 1
Deschampsia cespitosa Tufted hair grass Perennial grass 49
Deschampsia cespitosa ssp. cespitosa Tufted hairgrass Perennial grass 24
Deschampsia elongata Hairgrass Perennial grass 16
Descurainia adenophora White tansy mustard Perennial herb  
Descurainia californica Sierra tansy mustard Perennial herb  
Descurainia incana Mountain tansy mustard Perennial herb  
Descurainia obtusa ssp. adenophora White tansy mustard Perennial herb  
Dicentra chrysantha Golden eardrops Perennial herb 4
Dicentra ochroleuca Yellow bleeding heart Perennial herb  
Dichanthelium lanuginosum var. thermale Geysers dichanthelium Perennial grass  
Dichelostemma capitatum Blue dicks Perennial herb 15
Dichelostemma capitatum ssp. capitatum Wild hyacinth Perennial herb 2
Dichelostemma capitatum ssp. pauciflorum Few flowered blue dicks Perennial herb  
Dichondra donelliana Dichondra Perennial herb, Vine 5
Dieteria asteroides Hoary aster Perennial herb  
Dieteria asteroides var. asteroides Hoary aster Perennial herb  
Dieteria canescens Hoary aster Perennial herb 1
Dieteria canescens var. canescens Hoary aster Perennial herb  
Dieteria canescens var. incana Hoary aster Perennial herb  
Dieteria canescens var. ziegleri Ziegler's aster Perennial herb  
Diplacus clevelandii Cleveland's bush monkeyflower Perennial herb 2
Disporum hookeri Fairy bells Perennial herb 11
Disporum smithii Fairy lantern Perennial herb 5
Distichlis spicata Salt grass Perennial grass 24
Ditaxis californica California ditaxis Perennial herb  
Ditaxis clariana Glandular ditaxis Perennial herb  
Ditaxis claryana Glandular ditaxis Perennial herb  
Ditaxis lanceolata Lance leaved ditaxis Perennial herb  
Ditaxis serrata var. californica California ditaxis Perennial herb  
Dithyrea maritima Beach spectaclepod Perennial herb (rhizomatous)  
Dodecatheon alpinum Alpine shooting star Perennial herb 1
Dodecatheon clevelandii Padre's shooting star Perennial herb 9
Dodecatheon clevelandii ssp. clevelandii Cleveland's shooting star Perennial herb  
Dodecatheon clevelandii ssp. insulare Padre's shooting star Perennial herb 2
Dodecatheon clevelandii ssp. patulum Padre's shooting star Perennial herb  
Dodecatheon clevelandii ssp. sanctarum Padre's shooting star Perennial herb  
Dodecatheon conjugens Bonneville shooting star Perennial herb  
Dodecatheon hendersonii Shooting star Perennial herb 10
Dodecatheon jeffreyi Jeffrey's shooting star Perennial herb 3
Dodecatheon pulchellum Dark throated shooting star Perennial herb 6
Dodecatheon redolens Scented shooting star Perennial herb  
Dodecatheon subalpinum Sierra shooting star Perennial herb  
Draba breweri var. breweri Cushion draba Perennial herb  
Draba breweri var. cana Hoary draba Perennial herb  
Draba corrugata Southern california draba Perennial herb  
Draba corrugata var. corrugata Southern california draba Perennial herb  
Draba corrugata var. saxosa Southern california rock draba Perennial herb  
Draba lemmonii var. lemmonii Lemmon's draba Perennial herb  
Draba lonchocarpa var. lonchocarpa Spear fruited draba Perennial herb  
Draba oligosperma var. oligosperma Few seeded draba Perennial herb  
Draba oligosperma var. subsessilis Alpine few seeded draba Perennial herb  
Draba paysonii var. treleasei Trelease's draba Perennial herb  
Draba saxosa Southern california rock draba Perennial herb  
Drymocallis glandulosa Sticky cinquefoil Perennial herb 11
Drymocallis glandulosa var. glandulosa Sticky cinquefoil Perennial herb  
Drymocallis glandulosa var. reflexa Sticky cinquefoil Perennial herb  
Drymocallis glandulosa var. viscida Sticky cinquefoil Perennial herb  
Drymocallis glandulosa var. wrangelliana Sticky cinquefoil Perennial herb  
Drymocallis lactea Perennial herb 9
Drymocallis lactea var. lactea Sierran woodbeauty Perennial herb  
Dudleya abramsii Abrams' dudleya Perennial herb 1
Dudleya abramsii ssp. abramsii Abrams' dudleya Perennial herb  
Dudleya abramsii ssp. affinis San bernardino mtns. dudleya Perennial herb  
Dudleya abramsii ssp. parva Conejo dudleya Perennial herb  
Dudleya alainae Banner dudleya Perennial herb  
Dudleya arizonica Arizona chalk dudleya Perennial herb  
Dudleya attenuata ssp. orcuttii Orcutt's dudleya Perennial herb 1
Dudleya blochmaniae ssp. brevifolia Short leaved dudleya Perennial herb  
Dudleya calcicola Limestone dudleya Perennial herb  
Dudleya cymosa Rock lettuce Perennial herb 19
Dudleya cymosa ssp. costafolia Pierpoint springs dudleya Perennial herb  
Dudleya cymosa ssp. pumila Low canyon dudleya Perennial herb 2
Dudleya edulis Fingertips Perennial herb 8
Dudleya hassei Hasse's dudleya Perennial herb 9
Dudleya lanceolata Southern california dudleya Perennial herb 14
Dudleya multicaulis Many stemmed dudleya Perennial herb  
Dudleya pulverulenta Chalk dudleya Perennial herb 14
Dudleya pulverulenta ssp. arizonica Arizona chalk dudleya Perennial herb  
Dudleya pulverulenta ssp. pulverulenta California chalk lettuce Perennial herb 14
Dudleya saxosa Panamint dudleya Perennial herb  
Dudleya saxosa ssp. aloides Desert dudleya Perennial herb  
Dudleya saxosa ssp. saxosa Panamint dudleya Perennial herb  
Dudleya setchellii Santa clara valley dudleya Perennial herb 2
Dudleya viscida Sticky dudleya Perennial herb 1
Dugaldia hoopesii Hoope's sneezeweed Perennial herb 5
Echinodorus berteroi Burhead Perennial herb (aquatic)  
Ehrendorferia chrysantha Golden eardrops Perennial herb 4
Ehrendorferia ochroleuca Yellow bleeding heart Perennial herb  
Eleocharis acicularis Needle spikerush Perennial grass 2
Eleocharis acicularis var. acicularis Needle spike rush Perennial grass  
Eleocharis acicularis var. bella Beautiful spikerush Perennial grass  
Eleocharis acicularis var. occidentalis Needle spike rush Perennial grass  
Eleocharis bella Beautiful spikerush Perennial grass  
Eleocharis macrostachya Spike rush Perennial grass 18
Eleocharis montevidensis Montevideo spike rush Perennial grass 2
Eleocharis palustris Common spikerush Perennial grass 8
Eleocharis parishii Parish's spike rush Perennial grass  
Eleocharis parvula Small spikerush Perennial grass 2
Eleocharis pauciflora Few flowered spike rush Perennial grass  
Eleocharis quinqueflora Fewflower spikerush Perennial grass  
Eleocharis radicans Creeping spikerush Perennial grass  
Eleocharis rostellata Walking sedge Perennial grass  
Elymus Xgouldii Many flowered wild rye Perennial grass  
Elymus Xhansenii Perennial grass  
Elymus condensatus Giant wild rye Perennial grass 31
Elymus elymoides Squirrel tail grass Perennial grass 14
Elymus elymoides ssp. brevifolius Short leaved squirreltail Perennial grass  
Elymus elymoides ssp. californicus California squirreltail Perennial grass  
Elymus elymoides ssp. elymoides Squirreltail Perennial grass  
Elymus elymoides var. brevifolius Squirrel tail grass Perennial grass  
Elymus elymoides var. californicus Squirrel tail grass Perennial grass  
Elymus elymoides var. elymoides Squirrel tail grass Perennial grass  
Elymus glaucus Blue wildrye Perennial grass 35
Elymus glaucus ssp. glaucus Blue wild rye Perennial grass 3
Elymus glaucus ssp. jepsonii Western rye grass Perennial grass 3
Elymus glaucus ssp. virescens Virginia wildrye Perennial grass  
Elymus multisetus Big squirreltail grass Perennial grass 12
Elymus spicatus Blue bunch wheat grass Perennial grass 7
Elymus stebbinsii Stebbins' wildrye Perennial grass  
Elymus stebbinsii ssp. stebbinsii Parish wheatgrass Perennial grass  
Elymus trachycaulus Slender wheatgrass Perennial grass 9
Elymus trachycaulus ssp. subsecundus Bearded wheatgrass Perennial grass 2
Elymus trachycaulus ssp. trachycaulus Slender wheatgrass Perennial grass 7
Elymus triticoides Beardless wild rye Perennial grass 31
Elytrigia juncea Russian wheatgrass Perennial grass  
Epilobium anagallidifolium Alpine willowherb Perennial herb  
Epilobium angustifolium ssp. angustifolium Fireweed Perennial herb 1
Epilobium angustifolium ssp. circumvagum Fireweed Perennial herb 1
Epilobium canum California fuchsia Perennial herb 51
Epilobium canum ssp. angustifolium Hummingbird trumpet Perennial herb 21
Epilobium canum ssp. canum California fuchsia Perennial herb 12
Epilobium canum ssp. latifolium California fushia Perennial herb 5
Epilobium ciliatum Slender willow herb Perennial herb 2
Epilobium ciliatum ssp. ciliatum Willow herb Perennial herb 2
Epilobium ciliatum ssp. glandulosum Glandular willowherb Perennial herb 1
Epilobium glaberrimum Smooth willowherb Perennial herb  
Epilobium glaberrimum ssp. fastigiatum Smooth willowherb Perennial herb  
Epilobium glaberrimum ssp. glaberrimum Smooth willowherb Perennial herb  
Epilobium halleanum Hairy willowherb Perennial herb  
Epilobium hallianum Hall's willowherb Perennial herb  
Epilobium lactiflorum White flowered willowherb Perennial herb  
Epilobium latifolium River beauty Perennial herb 2
Epilobium oregonense Slimstem willowweed Perennial herb  
Epipactis gigantea Stream orchid Perennial herb 15
Eremogone ferrisiae Perennial herb  
Eremogone macradenia Mojave sandwort Perennial herb  
Eremogone macradenia var. macradenia Desert sandwort Perennial herb  
Eriastrum densifolium Giant eriastrum Perennial herb 3
Eriastrum densifolium ssp. austromontanum Southern mountain eriastrum Perennial herb  
Eriastrum densifolium ssp. densifolium Giant eriastrum Perennial herb 1
Eriastrum densifolium ssp. elongatum Perennial wool star Perennial herb  
Eriastrum densifolium ssp. mohavense Perennial vool star Perennial herb 1
Eriastrum densifolium ssp. sanctorum Santa ana river woollystar Perennial herb  
Ericameria paniculata Mojave rabbitbrush Perennial herb 1
Erigeron acris Bitter fleabane Perennial herb  
Erigeron angustatus Narrow leaved daisy Perennial herb  
Erigeron austiniae Rebecca austin's fleabane Perennial herb  
Erigeron breweri Brewer's fleabane Perennial herb  
Erigeron breweri var. covillei Coville erigeron Perennial herb  
Erigeron breweri var. jacinteus San jacinto mtns. daisy Perennial herb (rhizomatous)  
Erigeron breweri var. klamathensis Klamath fleabane Perennial herb  
Erigeron breweri var. porphyreticus Fleabane Perennial herb  
Erigeron compactus var. compactus Cushion daisy Perennial herb  
Erigeron coulteri Coulter's daisy Perennial herb  
Erigeron decumbens var. robustior Robust daisy Perennial herb  
Erigeron disparipilus White cushion fleabane Perennial herb  
Erigeron filifolius var. filifolius Thread leaved fleabane Perennial herb  
Erigeron foliosus Leafy daisy Perennial herb  
Erigeron foliosus var. foliosus Thread stemmed fleabane Perennial herb, Shrub  
Erigeron linearis Narrow leaved fleabane Perennial herb 2
Erigeron lobatus Lobed fleabane Perennial herb 3
Erigeron nevadincola Nevada daisy Perennial herb  
Erigeron parishii Parish fleabane Perennial herb  
Erigeron peregrinus Wandering fleabane Perennial herb 3
Erigeron peregrinus var. callianthemus Wandering fleabane Perennial herb  
Erigeron peregrinus var. hirsutus Wandering fleabane Perennial herb  
Erigeron philadelphicus Philadelphia fleabane Perennial herb  
Erigeron pumilus ssp. intermedius Shaggy fleabane Perennial herb  
Erigeron pumilus var. gracilior Shaggy fleabane Perennial herb  
Eriodictyon parryi Poodle-dog bush Perennial herb 1
Eriogonum beatleyae Beatley's buckwheat Perennial herb  
Eriogonum crosbyae Crosby's buckwheat Perennial herb  
Eriogonum douglasii var. douglasii Douglas' buckwheat Perennial herb  
Eriogonum elongatum Longstem buckwheat Perennial herb 5
Eriogonum elongatum var. elongatum Long stemmed buckwheat Perennial herb 5
Eriogonum ericifolium var. thornei Thorne's buckwheat Perennial herb  
Eriogonum inflatum Desert trumpet Perennial herb  
Eriogonum inflatum var. deflatum Deflated desert trumpet Perennial herb  
Eriogonum inflatum var. inflatum Desert trumpet Perennial herb  
Eriogonum lobbii Lobb's buckwheat Perennial herb  
Eriogonum lobbii var. lobbii Lobb's buckwheat Perennial herb  
Eriogonum oblongifolium Coast buckwheat Perennial herb 23
Eriogonum ochrocephalum var. alexanderae Alexander's buckwheat Perennial herb  
Eriogonum panamintense var. mensicola Panamint mountain buckwheat Perennial herb, Shrub  
Eriogonum panamintense var. panamintense Panamint mountain buckwheat Perennial herb, Shrub  
Eriogonum saxatile Rock buckwheat Perennial herb  
Eriogonum umbellatum Sulphur buckwheat Perennial herb 26
Eriogonum umbellatum var. canifolium Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. minus Alpine sulfur flowered buckwheat Perennial herb  
Eriogonum umbellatum var. munzii Munz's buckwheat Perennial herb  
Eriogonum wrightii Wright's buckwheat Perennial herb, Shrub 4
Eriogonum wrightii var. membranaceum Wright s buckwheat Perennial herb, Shrub  
Eriogonum wrightii var. nodosum Wright s buckwheat Perennial herb, Shrub  
Eriogonum wrightii var. subscaposum Wright's buckwheat Perennial herb, Shrub 1
Eriogonum wrightii var. trachygonum Wright s buckwheat Perennial herb, Shrub  
Eriogonum wrightii var. wrightii Wright's buckwheat Perennial herb, Shrub  
Erioneuron pulchellum Fluff grass Perennial grass  
Eriophorum criniger Cotton grass Perennial grass  
Eriophorum crinigerum Fringed cottongrass Perennial grass  
Eriophyllum lanatum Wooly sunflower Perennial herb 27
Eriophyllum lanatum var. achillaeoides Yarrow leaved woolly sunflower Perennial herb 2
Eriophyllum lanatum var. integrifolium Oregon sunshine Perennial herb  
Eriophyllum latilobum San mateo woolly sunflower Perennial herb  
Eryngium aristulatum Jepson's button celery Perennial herb 2
Eryngium pendletonensis Pendleton's eryngo Perennial herb  
Erysimum argillosum Western wallflower Perennial herb  
Erysimum capitatum Wallflower Perennial herb 11
Erysimum capitatum var. bealianum Western wallflower Perennial herb  
Erysimum capitatum var. capitatum Sanddune wallflower Perennial herb  
Erysimum capitatum var. perenne Sanddune wallflower Perennial herb  
Erysimum franciscanum var. crassifolium San francisco wallflower Perennial herb 9
Erysimum insulare ssp. insulare Island wallflower Perennial herb  
Erysimum insulare ssp. suffrutescens Suffrutescent wallflower Perennial herb 4
Erysimum insulare var. grandifolium Island wallflower Perennial herb  
Erysimum menziesii ssp. concinnum Headland wallflower Perennial herb 9
Erysimum menziesii ssp. eurekense Humboldt bay wallflower Perennial herb 5
Erysimum menziesii ssp. menziesii Menzies's wallflower Perennial herb  
Erysimum menziesii ssp. yadonii Yadon's wallflower Perennial herb 5
Erythranthe cardinalis Cardinal monkey flower Perennial herb 41
Erythranthe inodora Musk monkeyflower Perennial herb 1
Erythranthe primuloides Primrose monkeyflower Perennial herb  
Erythranthe tilingii Larger mountain monkeyflower Perennial herb 3
Erythronium grandiflorum var. pallidum California glacier lily Perennial herb (bulb)  
Erythronium multiscapoideum Sierra fawn lily Perennial herb (bulb) 4
Eschscholzia californica ssp. californica California poppy Perennial herb 3
Eschscholzia procera Kernville poppy Perennial herb 3
Euphorbia albomarginata Rattlesnake sandmat Perennial herb  
Euphorbia arizonica Arizona spurge Perennial herb  
Euphorbia incisa Mojave spurge Perennial herb  
Euphorbia lurida Woodland spurge Perennial herb  
Euphorbia melanadenia Red-gland spurge Perennial herb  
Euphorbia palmeri Woodland spurge Perennial herb  
Euphorbia parishii Parish's sandmat Perennial herb  
Euphorbia pediculifera Carrizo mountain sandmat Perennial herb  
Euphorbia polycarpa Smallseed sandmat Perennial herb  
Euphorbia schizoloba Mojave spurge Perennial herb  
Euphorbia vallis-mortae Death valley sandmat Perennial herb  
Euthamia occidentalis Western goldenrod Perennial herb 15
Fagonia longipes Long leaf fagonia Perennial herb  
Fagonia pachyacantha Fagonis Perennial herb (stem succulent)  
Festuca brachyphylla ssp. coloradensis Colorado fescue Perennial grass  
Festuca californica California fescue Perennial grass 48
Festuca californica ssp. californica Perennial grass 5
Festuca californica ssp. hitchcockiana Perennial grass  
Festuca californica ssp. parishii Perennial grass  
Festuca californica var. parishii California fescue Perennial grass  
Festuca elmeri Coast fescue Perennial grass  
Festuca occidentalis Western fescue Perennial grass 8
Festuca roemeri var. klamathensis Idaho fescue Perennial grass 50
Festuca roemeri var. roemeri Perennial grass 50
Festuca saximontana var. purpusiana Rocky mountain fescue Perennial grass 1
Fragaria chiloensis ssp. lucida Beach strawberry Perennial herb 36
Fragaria crinita Beach strawberry Perennial herb 34
Fragaria vesca Wild strawberry Perennial herb 43
Fragaria vesca ssp. bracteata Woodland strawberry Perennial herb 34
Frankenia palmeri Palmer's frankenia Perennial herb  
Frankenia salina Yerba reuma, alkali heath Perennial herb 11
Frasera neglecta Pine green-gentian Perennial herb  
Frasera parryi Coahuila frasera Perennial herb  
Fritillaria affinis var. affinis Checker lily Perennial herb (bulb) 5
Fritillaria affinis var. tristulis Coast checker lily Perennial herb (bulb) 5
Fritillaria biflora Chocolate lily Perennial herb 3
Fritillaria biflora var. biflora Chocolate lily Perennial herb (bulb) 3
Fritillaria roderickii Roderick's fritillary Perennial herb (bulb) 1
Funastrum crispum Wavyleaf twinevine Perennial herb  
Funastrum cynanchoides Fringed twinevine Perennial herb 1
Funastrum cynanchoides var. hartwegii Climbing milkweed Perennial herb  
Funastrum hirtellum Hairy milkweed Perennial herb, Vine  
Funastrum utahense Utah vine milkweed Perennial herb  
Galium ambiguum var. ambiguum Yolla bolly bedstraw Perennial herb  
Galium ambiguum var. siskiyouense Siskiyou bedstraw Perennial herb  
Galium andrewsii Phlox leaved bedstraw Perennial herb  
Galium andrewsii ssp. andrewsii Phlox leaved bedstraw Perennial herb  
Galium angustifolium Narrow leaved bedstraw Perennial herb 4
Galium angustifolium ssp. angustifolium Narrow leaved bedstraw Perennial herb  
Galium angustifolium ssp. gabrielense San antonio canyon bedstraw Perennial herb  
Galium angustifolium ssp. gracillimum Narrow leaved bedstraw Perennial herb  
Galium angustifolium ssp. jacinticum San jacinto mtns. bedstraw Perennial herb  
Galium boreale ssp. septentrionale Northern bedstraw Perennial herb  
Galium californicum California bedstraw Perennial herb  
Galium californicum ssp. primum California bedstraw Perennial herb  
Galium hilendiae Hilend's bedstraw Perennial herb  
Galium hilendiae ssp. hilendiae Hilend's bedstraw Perennial herb  
Galium jepsonii Jepson's bedstraw Perennial herb (rhizomatous)  
Galium johnstonii Johnston's bedstraw Perennial herb  
Galium mexicanum var. asperulum Mexican bedstraw Perennial herb  
Galium multiflorum Many flowered bedstraw Perennial herb  
Galium munzii Munz's bedstraw Perennial herb  
Galium nuttallii Climbing bedstraw Perennial herb  
Galium nuttallii ssp. nuttallii Climbing bedstraw Perennial herb  
Galium parishii Parish's bedstraw Perennial herb  
Galium trifidum Three petaled bedstraw Perennial herb  
Galium trifidum ssp. subbiflorum Threepetal bedstraw Perennial herb  
Galium trifidum var. pacificum Bedstraw Perennial herb  
Galium trifidum var. pusillum Small bedstraw Perennial herb  
Galvezia speciosa Island snapdragon Perennial herb, Shrub 31
Gamochaeta ustulata Featherweed Perennial herb  
Geranium californicum California geranium Perennial herb  
Geranium concinnum California mountain geranium Perennial herb  
Geranium richardsonii Richardson's geranium Perennial herb  
Gilia ripleyi Ripley's gilia Perennial herb  
Glaux maritima Sea milk wort Perennial herb  
Glyceria davyi Davy mannagrass Perennial grass  
Glyceria elata Tall mannagrass Perennial grass 8
Glyceria occidentalis Waxy mannagrass Perennial grass (aquatic) 2
Glyceria striata Fowl mannagrass Perennial grass 8
Glycyrrhiza lepidota Lichorice Perennial herb 1
Gnaphalium canescens Everlasting cudweed Perennial herb 3
Gnaphalium canescens ssp. beneolens Cudweed Perennial herb 1
Gnaphalium canescens ssp. canescens Everlasting cudweed Perennial herb  
Gnaphalium canescens ssp. microcephalum White everlasting Perennial herb 1
Gnaphalium canescens ssp. thermale Small headed cudweed Perennial herb  
Gnaphalium leucocephalum White headed cudweed Perennial herb  
Grindelia camporum Gumweed Perennial herb 14
Grindelia camporum var. bracteosa Bract gumweed Perennial herb 13
Grindelia camporum var. camporum Great valley gumweed Perennial herb 14
Grindelia fraxino-pratensis Ash meadows gumplant Perennial herb  
Grindelia hirsutula var. davyi Davy's gumweed Perennial herb 13
Grindelia hirsutula var. hallii San diego gumplant Perennial herb  
Grindelia hirsutula var. hirsutula Hairy gumweed Perennial herb 13
Gutierrezia californica Matchweed, snakeweed Perennial herb, Shrub 5
Halimolobos virgata Virgate halimolobos Perennial herb  
Hedeoma nana var. californica California mock pennyroyal Perennial herb  
Hedeoma nanum var. californicum Mock pennyroyal Perennial herb  
Helenium autumnale var. grandiflorum Large flowered autumn sneezeweed Perennial herb 8
Helenium autumnale var. montanum Montane autumn sneezeweed Perennial herb 8
Helenium bigelovii Bigelow's sneezeweed Perennial herb 7
Helenium puberulum Sneezeweed Perennial herb 10
Helianthella californica California helianthella Perennial herb 3
Helianthus californicus California sunflower Perennial herb 6
Helianthus gracilentus Slender sunflower Perennial herb 3
Helianthus niveus ssp. tephrodes Algodones dunes sunflower Perennial herb  
Helianthus nuttallii Nuttall's sunflower Perennial herb  
Helianthus nuttallii ssp. nuttallii Nuttall's sunflower Perennial herb  
Heliotropium curassavicum Chinese parsley Perennial herb 6
Heliotropium curassavicum var. oculatum Seaside heliotrope Perennial herb  
Heliotropium procumbens var. procumbens Fourspike heliotrope Perennial herb  
Heracleum lanatum Cow parsnip Perennial herb 20
Heracleum maximum Common cowparsnip Perennial herb 20
Hesperocallis undulata Desert lily Perennial herb 1
Hesperostipa comata Needle & thread grass Perennial grass 10
Hesperostipa comata ssp. comata Needle & thread grass Perennial grass 1
Hesperostipa comata ssp. intermedia Intermediate needle & thread grass Perennial grass  
Heterotheca sessiliflora ssp. echioides Bristly goldenaster Perennial herb  
Heterotheca sessiliflora ssp. fastigiata Erect goldenaster Perennial herb  
Heterotheca sessiliflora var. bolanderoides False bolander's goldenaster Perennial herb  
Heterotheca subaxillaris Camphorweed Perennial herb 1
Heterotheca villosa Hairy goldenaster Perennial herb 12
Heterotheca villosa var. hispida Hairy goldenaster Perennial herb  
Heterotheca villosa var. minor Hairy false goldenaster Perennial herb  
Heterotheca villosa var. scabra Rough hairy goldenaster Perennial herb  
Heterotheca villosa var. shevockii Shevock's hairy golden aster Perennial herb  
Heterotheca villosa var. villosa Hairy goldenaster Perennial herb 3
Heuchera alpestris Parish's alumroot Perennial herb 2
Heuchera caespitosa Urn-flowered alumroot Perennial herb 3
Heuchera cespitosa Tufted alumroot Perennial herb 1
Heuchera cylindrica var. alpina Alpine alumroot Perennial herb 7
Heuchera duranii Duran's alumroot Perennial herb (rhizomatous)  
Heuchera elegans Urn flowered alumroot Perennial herb (rhizomatous) 3
Heuchera hirsutissima Shaggy haired alumroot Perennial herb (rhizomatous) 5
Heuchera micrantha var. diversifolia Crevice alumroot Perennial herb 31
Heuchera micrantha var. erubescens Crevice alumroot Perennial herb 30
Heuchera micrantha var. macropetala Crevice alumroot Perennial herb 30
Heuchera micrantha var. micrantha Crevice alumroot Perennial herb 30
Heuchera parishii Parish's alumroot Perennial herb (rhizomatous) 2
Heuchera pilosissima var. pilosissima Seaside alumroot Perennial herb 8
Heuchera pringlei Merriam's alumroot Perennial herb 1
Heuchera rubescens Pink alumroot Perennial herb 5
Heuchera rubescens var. alpicola Allum root Perennial herb 5
Heuchera rubescens var. glandulosa Pink alumroot Perennial herb 5
Heuchera rubescens var. rydbergiana Pink alumroot Perennial herb 5
Hibiscus denudatus Rocl hibiscus Perennial herb 1
Hibiscus lasiocarpos Rose mallow Perennial herb (rhizomatous) 8
Hibiscus lasiocarpos var. occidentalis Woolly rose-mallow Perennial herb 13
Hieracium albiflorum White flowered hawkweed Perennial herb 2
Hieracium gracile Alpine hawkweed Perennial herb  
Hieracium horridum Shaggy hawkweed Perennial herb  
Hieracium scouleri var. nudicaule Naked stemmed scouler's hawkweed Perennial herb  
Hierochloe occidentalis Western sweetgrass Perennial grass 6
Hierochloe odorata Vanilla grass Perennial grass (rhizomatous) 8
Hilaria rigida Big galleta Perennial grass 7
Hippuris vulgaris Mare's tail Perennial herb (aquatic) 1
Hoffmannseggia glauca Hoffmanseggia Perennial herb  
Hoita macrostachya California hemp Perennial herb 5
Hoita orbicularis Creeping leather root Perennial herb 2
Hordeum brachyantherum Meadow barley Perennial grass 26
Hordeum brachyantherum ssp. californicum Meadow barley Perennial grass 7
Hordeum jubatum Fox tail barley Perennial grass 7
Horkelia bolanderi Bolander's horkelia Perennial herb  
Horkelia californica ssp. californica California horkelia Perennial herb  
Horkelia californica ssp. dissita California horkelia Perennial herb  
Horkelia californica ssp. frondosa California horkelia Perennial herb  
Horkelia clevelandii Cleveland's horkelia Perennial herb 1
Horkelia clevelandii var. clevelandii Cleveland's horkelia Perennial herb  
Horkelia congesta ssp. nemorosa Josephine horkelia Perennial herb  
Horkelia cuneata Wedge leaved horkelia Perennial herb 5
Horkelia cuneata ssp. cuneata Coast horkelia Perennial herb 1
Horkelia cuneata ssp. puberula Coast horkelia Perennial herb  
Horkelia cuneata ssp. sericea Wedge leaved horkelia Perennial herb 1
Horkelia cuneata var. cuneata Wedge leaved horkelia Perennial herb 1
Horkelia cuneata var. puberula Mesa horkelia Perennial herb  
Horkelia fusca ssp. capitata Dark horkelia Perennial herb  
Horkelia fusca ssp. parviflora Dusky horkelia Perennial herb  
Horkelia fusca ssp. tenella Pinewoods horkelia Perennial herb  
Horkelia rydbergii Rydberg's horkelia Perennial herb  
Horkelia tridentata ssp. flavescens Three toothed horkelia Perennial herb  
Horkelia tridentata ssp. tridentata Three toothed horkelia Perennial herb  
Horkelia truncata Ramona horkelia Perennial herb  
Horsfordia newberryi Newberry's velvet mallow Perennial herb  
Hosackia crassifolia Broad leaved lotus Perennial herb 5
Hosackia crassifolia var. crassifolia Broad leaved lotus Perennial herb 2
Hosackia crassifolius Lotus Perennial herb 1
Hosackia crassifolius var. otayensis Otay mountain lotus Perennial herb 1
Hosackia oblongifolia Narrow leaved lotus Perennial herb 2
Hosackia oblongifolia var. oblongifolia Narrow leaved lotus Perennial herb  
Hosackia stipularis Stipulate lotus Perennial herb  
Hulsea brevifolia Short leaved hulsea Perennial herb  
Hulsea californica San diego sunflower Perennial herb  
Hulsea heterochroma Red rayed hulsea Perennial herb 1
Hulsea vestita Pumice hulsea Perennial herb  
Hulsea vestita ssp. callicarpha Beautiful hulsea Perennial herb  
Hulsea vestita ssp. parryi Parry's hulsea Perennial herb  
Hydrocotyle ranunculoides Marsh pennywort Perennial herb 2
Hydrocotyle umbellata Marsh pennywort Perennial herb  
Hydrocotyle verticillata Whorled marsh pennywort Perennial herb 2
Hydrophyllum capitatum var. alpinum Woolen breeches Perennial herb  
Hymenopappus filifolius Columbia cutleaf Perennial herb  
Hymenopappus filifolius var. lugens Columbia cutleaf Perennial herb  
Hymenothrix dissecta Ragged leaf bahia Perennial herb  
Hymenoxys acaulis var. arizonica Arizona hymenoxys Perennial herb  
Hymenoxys cooperi Cooper's goldflower Perennial herb  
Hymenoxys cooperi var. canescens Gray cooper's goldflower Perennial herb  
Hymenoxys cooperi var. cooperi Cooper's rubberweed Perennial herb  
Hypericum formosum St john's wort Perennial herb  
Hypericum formosum var. scouleri Scouler's st. john's wort Perennial herb 2
Hypericum scouleri Scouler's st john's wort Perennial herb 2
Imperata brevifolia Satintail Perennial grass 2
Ipomopsis aggregata ssp. formosissima Western scarlet gilia Perennial herb  
Ipomopsis congesta ssp. palmifrons Ball headed gilia Perennial herb  
Ipomopsis tenuifolia Slender leaved ipomopsis Perennial herb 2
Iris hartwegii Hartweg's iris Perennial herb 4
Iris hartwegii ssp. australis Southern hartweg's iris Perennial herb  
Isopyrum occidentale Western false rue anemone Perennial herb  
Isopyrum stipitatum Siskiyou rue anemone Perennial herb  
Iva axillaris Povertyweed Perennial herb  
Iva axillaris ssp. robustior Poverty weed Perennial herb  
Ivesia callida Tahquitz ivesia Perennial herb  
Ivesia lycopodioides ssp. lycopodioides Clubmoss ivesia Perennial herb  
Ivesia lycopodioides ssp. megalopetala Clubmoss ivesia Perennial herb  
Ivesia lycopodioides ssp. scandularis Clubmoss ivesia Perennial herb  
Ivesia santolinoides Mouse tail ivesia Perennial herb  
Ivesia saxosa Rock ivesia Perennial herb  
Jepsonia parryi Parry's jepsonia Perennial herb  
Juncus acutus Spiny rush Perennial grass (rhizomatous) 14
Juncus acutus ssp. leopoldii Wire grass Perennial grass (rhizomatous) 3
Juncus balticus Wire rush Perennial grass 21
Juncus balticus ssp. ater Baltic rush Perennial grass 2
Juncus bufonius var. occidentalis Round fruited toad rush Perennial grass  
Juncus cooperi Cooper's rush Perennial grass  
Juncus covillei var. covillei Coville's rush Perennial grass  
Juncus covillei var. obtusatus Coville's rush Perennial grass  
Juncus dubius Mariposa rush Perennial grass 1
Juncus duranii Duran's rush Perennial grass (rhizomatous)  
Juncus effusus Common bog rush Perennial grass 43
Juncus effusus ssp. austrocalifornicus Common bog rush Perennial grass  
Juncus effusus ssp. pacificus Pacific rush Perennial grass 7
Juncus effusus var. brunneus Common bog rush Perennial grass 4
Juncus effusus var. exiguus Common bog rush Perennial grass  
Juncus effusus var. gracilis Slender common rush Perennial grass  
Juncus effusus var. pacificus Pacific bog rush Perennial grass 7
Juncus exiguus Klamath or weak rush Perennial grass  
Juncus falcatus var. falcatus Sickle leafed rush Perennial grass  
Juncus lesueurii Dune rush Perennial grass 1
Juncus longistylis Long styled rush Perennial grass 1
Juncus macrandrus Long anthered rush Perennial grass  
Juncus macrophyllus Rush Perennial grass 1
Juncus marginatus var. marginatus Red anthered rush Perennial grass (rhizomatous)  
Juncus mertensianus Merten's rush Perennial grass 1
Juncus mexicanus Mexican rush Perennial grass 11
Juncus oxymeris Pointed rush Perennial grass 1
Juncus patens Rush Perennial grass 47
Juncus phaeocephalus Brown headed rush Perennial grass 9
Juncus phaeocephalus var. paniculatus Rush Perennial grass  
Juncus phaeocephalus var. phaeocephalus Brown headed rush Perennial grass  
Juncus rugulosus Wrinkled rush Perennial grass  
Juncus saximontanus Rocky mountain rush Perennial grass  
Juncus tenuis Slender rush Perennial grass 8
Juncus textilis Basket rush Perennial grass 7
Juncus torreyi Torrey's rush Perennial grass 5
Juncus xiphioides Iris leaved rush Perennial grass 14
Kelloggia galioides Kelloggia Perennial herb  
Kobresia bellardii Seep kobresia Perennial grass (rhizomatous)  
Koeleria macrantha June grass Perennial grass 29
Kopsiopsis strobilacea California ground-cone Perennial herb (parasitic)  
Kumlienia hystricula Waterfall false buttercup Perennial herb  
Lactuca tatarica var. pulchella Blue lettuce Perennial herb  
Lathyrus nevadensis ssp. lanceolatus Sierra pea Perennial herb  
Lathyrus nevadensis ssp. nevadensis Sierra pea Perennial herb  
Lathyrus splendens Pride of california Perennial herb  
Lathyrus sulphureus Sulpher pea Perennial herb  
Lathyrus sulphureus var. sulphureus Brewer's pea Perennial herb  
Lathyrus vestitus Common pacific pea Perennial herb 7
Lathyrus vestitus var. alefeldii San diego pea Perennial herb 1
Lathyrus vestitus var. vestitus Hillside pea Perennial herb 2
Leersia oryzoides Rice cutgrass Perennial grass 2
Lemna gibba Gibbous duckweed Perennial herb  
Lemna minor Smaller duckweed Perennial herb 3
Lemna minuscula Least duckweed Perennial herb  
Lemna minuta Least duckweed Perennial herb  
Lemna trisulca Star duckweed Perennial herb  
Lemna valdiviana Duckweed Perennial herb  
Lepidium fremontii Desert pepper grass Perennial herb 4
Lepidium fremontii var. fremontii Desert pepper grass Perennial herb 4
Lepidium fremontii var. stipitatum Desert pepper grass Perennial herb 4
Lepidium montanum var. canescens Mountain pepper grass Perennial herb 1
Lepidium montanum var. cinereum Mountain pepper grass Perennial herb 1
Lepidium montanum var. montanum Mountain pepper grass Perennial herb 1
Lepidium ramosissimum Manybranched pepperweed Perennial herb  
Lepidium ramosissimum var. bourgeauanum Branched pepper grass Perennial herb  
Leptodactylon jaegeri Jaeger's prickly phlox Perennial herb  
Leptosiphon floribundus Many flowered linanthus Perennial herb  
Leptosiphon floribundus ssp. floribundus Many flowered linanthus Perennial herb  
Leptosiphon floribundus ssp. glaber Smooth many flowered linanthus Perennial herb  
Leptosiphon floribundus ssp. hallii Santa rosa mountains leptosiphon Perennial herb  
Leptosiphon nuttallii Nuttall's linanthus Perennial herb 2
Leptosiphon nuttallii ssp. nuttallii Nuttall's linanthus Perennial herb 2
Lesquerella kingii King's bladderpod Perennial herb  
Lesquerella kingii ssp. bernardina San bernardino mtns. bladderpod Perennial herb  
Lesquerella kingii ssp. kingii King's bladderpod Perennial herb  
Lesquerella kingii ssp. latifolia Limestone bladderpod Perennial herb  
Lesquerella occidentalis ssp. occidentalis Western bladder pod Perennial herb  
Lessingia filaginifolia Common california aster Perennial herb 23
Lessingia filaginifolia var. californica Beach aster Perennial herb 8
Lessingia filaginifolia var. filaginifolia Common california aster Perennial herb 7
Lewisia leana Quill leaved lewisia Perennial herb 2
Lewisia rediviva Bitter root Perennial herb 3
Lewisia rediviva var. minor Bitter root Perennial herb  
Leymus Xmultiflorus Many flowered wild rye Perennial grass  
Leymus Xvancouverensis Vancouver wild rye Perennial grass  
Leymus cinereus Giant wild rye Perennial grass 8
Leymus condensatus Giant rye grass Perennial grass 34
Leymus mollis American dunegrass Perennial grass 9
Leymus mollis ssp. mollis American dune grass Perennial grass  
Leymus pacificus Gould's rye grass Perennial grass  
Leymus salinus ssp. mojavensis Mojave wild rye Perennial grass  
Leymus triticoides Alkali rye Perennial grass 32
Lilium humboldtii Humboldt's lily Perennial herb 9
Lilium humboldtii ssp. humboldtii Humboldt's lily Perennial herb (bulb) 1
Lilium humboldtii ssp. ocellatum Humboldt lily Perennial herb (bulb) 1
Lilium parryi Lemon lily Perennial herb (bulb) 6
Limosella subulata Delta mudwort Perennial herb  
Linanthus floribundus Many flowered linanthus Perennial herb  
Linanthus floribundus ssp. floribundus Many flowered linanthus Perennial herb  
Linanthus floribundus ssp. glaber Smooth many flowered linanthus Perennial herb  
Linanthus floribundus ssp. hallii Santa rosa mtns. linanthus Perennial herb  
Linanthus jaegeri San jacinto linanthus Perennial herb  
Linanthus nuttallii Nuttall's linanthus Perennial herb 2
Linanthus nuttallii ssp. howellii Mt. tedoc linanthus Perennial herb  
Linanthus nuttallii ssp. nuttallii Nuttall's linanthus Perennial herb  
Linanthus nuttallii ssp. pubescens Nuttall's hairy linanthus Perennial herb  
Linanthus pachyphyllus Sierra linanthus Perennial herb  
Linnaea borealis ssp. americana Twinflower Perennial herb 2
Linum lewisii Lewis' flax Perennial herb 35
Linum lewisii var. alpicola Alpine lewis' flax Perennial herb 32
Linum lewisii var. lewisii Lewis' flax Perennial herb 4
Listera caurina Northwest twayblade Perennial herb  
Listera convallarioides Broad lipped twayblade Perennial herb  
Listera cordata var. nephrophylla Heartleaf twayblade Perennial herb  
Lithophragma affine Common woodland star Perennial herb 2
Lithophragma bolanderi Hillstar Perennial herb  
Lithophragma heterophyllum Woodland star Perennial herb 1
Lithophragma parviflorum Pink woodland star Perennial herb 1
Lobelia cardinalis Cardinalflower Perennial herb 15
Lobelia cardinalis var. pseudosplendens Cardinal flower Perennial herb 15
Lobelia dunnii Dunn's lobelia Perennial herb 11
Lobelia dunnii var. serrata Dunn's lobelia Perennial herb 5
Lomatium ciliolatum var. ciliolatum Yolla bolly biscuitroot Perennial herb  
Lomatium dasycarpum Lace parsnip Perennial herb 3
Lomatium dasycarpum ssp. dasycarpum Woolly fruited lomatium Perennial herb  
Lomatium dissectum Fern leaved lomatium Perennial herb 3
Lomatium dissectum var. dissectum Fern leaved lomatium Perennial herb 2
Lomatium dissectum var. multifidum Fern leaved lomatium Perennial herb 1
Lomatium donnellii Donnell's biscuitroot Perennial herb  
Lomatium foeniculaceum ssp. macdougallii Desert biscuitroot Perennial herb  
Lomatium lucidum Shiny lomatium Perennial herb  
Lomatium mohavense Mohave wild parsely Perennial herb  
Lomatium utriculatum Hog fennel Perennial herb 2
Lomatium vaginatum Sheathed lomatium Perennial herb  
Lotus aboriginus Rose flowered lotus Perennial herb 1
Lotus argophyllus Silver birds foot trefoil Perennial herb 1
Lotus argophyllus var. adsurgens San clemente island bird's foot trefoil Perennial herb  
Lotus argophyllus var. argenteus Channel islands silver lotus Perennial herb 1
Lotus argophyllus var. argophyllus Southern california silver lotus Perennial herb  
Lotus argophyllus var. fremontii Fremont's silver lotus Perennial herb  
Lotus argophyllus var. niveus Santa cruz island silverlotus Perennial herb  
Lotus argyraeus Canyon birdsfoot trefoil Perennial herb  
Lotus argyraeus var. argyraeus Canyon lotus Perennial herb  
Lotus argyraeus var. multicaulis Scrub lotus Perennial herb  
Lotus argyraeus var. notitius Providence mtns. lotus Perennial herb  
Lotus benthamii Bentham's deerweed Perennial herb  
Lotus crassifolius Broad leaved lotus Perennial herb 7
Lotus crassifolius var. crassifolius Broad leaved lotus Perennial herb 2