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Criteria:   found in Ventura County  •   is native  •   likely to occur in wetlands  •  group by lifeform
775  records include photos for these plants # number of sources
Scientific Name Common Name Lifeform #
  Lifeform: Annual208 plants
  Lifeform: Perennial484 plants
Achnatherum diegoense San diego county needle grass Perennial grass  
Aconitum columbianum var. howellii Howell's monkshood Perennial herb  
Agrostis exarata Bentgrass Perennial grass 5
Agrostis exarata var. monolepis Spike bentgrass Perennial grass 5
Agrostis scabra var. geminata Rough bentgrass Perennial grass 4
Alisma triviale Northern water plantain Perennial herb (aquatic) 5
Andropogon glomeratus Bushy bluestem Perennial grass 2
Andropogon glomeratus var. scabriglumis Beardgrass Perennial grass  
Anemopsis californica Yerba mansa Perennial herb 31
Apocynum cannabinum Indian hemp Perennial herb 10
Aquilegia eximia Vanhoutte's columbine Perennial herb 5
Aquilegia formosa Columbine Perennial herb 54
Aralia californica California spikenard Perennial herb 17
Arnica chamissonis ssp. foliosa Meadow arnica Perennial herb 5
Artemisia douglasiana California mugwort Perennial herb 35
Arthrocnemum subterminale Parish's glasswort Perennial herb 4
Asclepias fascicularis narrow leaf milkweed Perennial herb 32
Aster lentus Suisun marsh aster Perennial herb (rhizomatous) 2
Astragalus pycnostachyus Marsh milk vetch Perennial herb 1
Astragalus pycnostachyus var. lanosissimus Ventura marsh milk vetch Perennial herb 1
Atriplex leucophylla Sea scale Perennial herb 7
Atriplex watsonii Watson's saltbush Perennial herb 3
Baccharis glutinosa Salt Marsh baccharis Perennial herb 29
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
Bolboschoenus maritimus Alkali bulrush Perennial grass 15
Bolboschoenus maritimus ssp. paludosus Saltmarsh bulrush Perennial grass 14
Bolboschoenus robustus Sturdy bullrush Perennial grass 10
Boykinia occidentalis Western boykinia Perennial herb 7
Boykinia rotundifolia Round leaved boykinia Perennial herb 2
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)  
Bromus ciliatus var. ciliatus Fringed brome Perennial grass 2
Callitriche heterophylla Water starwort Perennial herb  
Calochortus palmeri Strangling mariposa Perennial herb 1
Calochortus palmeri var. palmeri Palmer's mariposa lily Perennial herb (bulb) 1
Caltha leptosepala var. biflora Marsh marigold Perennial herb 3
Camassia quamash ssp. quamash Common camas Perennial herb 3
Cardamine breweri var. breweri Brewer's bitter cress Perennial herb  
Cardamine breweri var. orbicularis Heart leaved bitter cress 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 Rock toothwort Perennial herb  
Cardamine pachystigma var. pachystigma Rock toothwort Perennial herb  
Carex abrupta Abrupt beaked sedge Perennial grass  
Carex alma Sedge Perennial grass  
Carex athrostachya Slender leaved sedge Perennial grass 2
Carex aurea Golden fruited sedge Perennial grass  
Carex barbarae Valley sedge Perennial grass 24
Carex bolanderi Bolander's sedge Perennial grass  
Carex capitata ssp. capitata Capitate sedge Perennial grass  
Carex constanceana Contance's sedge Perennial grass  
Carex densa Sedge Perennial grass 9
Carex douglasii Douglas sedge Perennial grass 1
Carex fracta Fragile sheathed sedge Perennial grass 1
Carex gigas Siskiyou sedge Perennial grass (rhizomatous)  
Carex hassei Hasse's sedge Perennial grass  
Carex heteroneura var. epapillosa Smooth nerve sedge Perennial grass  
Carex heteroneura var. heteroneura Vari nerved sedge Perennial grass  
Carex incurviformis var. danaensis Coastal sand sedge Perennial grass (rhizomatous)  
Carex luzulina var. ablata American cold loving sedge Perennial grass  
Carex luzulina var. luzulina Wood rush sedge Perennial grass  
Carex nebrascensis Nebraska sedge Perennial grass 2
Carex pellita Woolly sedge Perennial grass 7
Carex praegracilis Field sedge Perennial grass 28
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 spissa San Diego sedge Perennial grass 14
Carex subfusca Brown sedge Perennial grass 7
Carex utriculata Beaked sedge Perennial grass 7
Carex vesicaria var. major Western blister sedge Perennial grass 2
Carex vesicaria var. vesicaria Inflated sedge Perennial grass 2
Castilleja miniata Great red paintbrush Perennial herb 6
Castilleja miniata ssp. miniata Scarlet indian paintbrush Perennial herb  
Chamerion latifolium Dwarf fireweed Perennial herb 3
Cicuta douglasii Western water hemlock Perennial herb 1
Cicuta maculata var. maculata Spotted water hemlock Perennial herb  
Cirsium loncholepis La graciosa thistle Perennial herb  
Cirsium scariosum Elk thistle Perennial herb  
Cirsium scariosum var. citrinum Southern meadow thistle Perennial herb  
Clematis ligusticifolia Creek clematis Perennial herb, Vine 32
Clematis ligusticifolia var. brevifolia Western white clematis Perennial herb, Vine 32
Clematis ligusticifolia var. californica California clematis Perennial herb, Vine 32
Clematis ligusticifolia var. ligusticifolia Western white clematis Perennial herb, Vine 32
Conioselinum pacificum Hemlock parsley Perennial herb  
Cressa truxillensis Alkali weed Perennial herb 3
Cyperus eragrostis Tall cyperus Perennial grass 13
Cyperus esculentus Nut grass Perennial grass  
Cyperus laevigatus Smooth cyperus Perennial grass  
Cyperus strigosus Straw colored cyperus Perennial grass 1
Danthonia californica var. americana American oatgrass Perennial grass 21
Danthonia californica var. californica California oatgrass Perennial grass 21
Datisca glomerata Durango root Perennial herb 2
Delphinium hesperium Western larkspur Perennial herb  
Delphinium hesperium ssp. pallescens Western larkspur Perennial herb  
Delphinium nuttallianum Nuttall's larkspur Perennial herb 2
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
Dichanthelium lanuginosum var. thermale Geysers dichanthelium Perennial grass  
Dieteria canescens Hoary aster Perennial herb 1
Dieteria canescens var. canescens Hoary aster Perennial herb  
Dieteria canescens var. shastensis Shasta aster Perennial herb  
Distichlis littoralis Shore grass Perennial grass 1
Distichlis spicata Salt grass Perennial grass 25
Dodecatheon pulchellum Dark throated shooting star Perennial herb 6
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  
Echinodorus berteroi Burhead Perennial herb (aquatic)  
Eleocharis acicularis Needle spikerush Perennial grass 2
Eleocharis acicularis var. bella Beautiful spikerush Perennial grass  
Eleocharis acicularis var. gracilescens Needle spike rush Perennial grass  
Eleocharis bella Beautiful spikerush Perennial grass  
Eleocharis montevidensis Montevideo spike rush Perennial grass 2
Eleocharis palustris Common spikerush Perennial grass 8
Eleocharis parishii Parish's spike rush Perennial grass  
Eleocharis quinqueflora Fewflower spikerush Perennial grass  
Eleocharis rostellata Walking sedge Perennial grass  
Eleocharis suksdorfiana Suksdorf's spikerush Perennial grass  
Elodea canadensis Common water weed Perennial herb  
Elymus cinereus Great basin wild rye Perennial grass 8
Elymus triticoides Beardless wild rye Perennial grass 31
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. glaberrimum Smooth willowherb Perennial herb  
Epilobium hallianum Hall's willowherb Perennial herb  
Epilobium oregonense Slimstem willowweed Perennial herb  
Epipactis gigantea Stream orchid Perennial herb 15
Erythranthe cardinalis Cardinal monkey flower Perennial herb 42
Erythranthe inodora Musk monkeyflower Perennial herb 1
Erythranthe primuloides Primrose monkeyflower Perennial herb  
Erythronium revolutum Mahogany fawn lily Perennial herb (bulb) 5
Euthamia occidentalis Western goldenrod Perennial herb 14
Extriplex californica California orach Perennial herb 1
Festuca rubra Red fescue Perennial grass 39
Frankenia salina Yerba reuma, alkali heath Perennial herb 11
Fritillaria agrestis Stinkbells Perennial herb (bulb) 1
Galium mexicanum var. asperulum Mexican bedstraw Perennial herb  
Galium trifidum var. pacificum Bedstraw Perennial herb  
Galium trifidum var. pusillum Small bedstraw Perennial herb  
Geranium californicum California geranium Perennial herb  
Glycyrrhiza lepidota Lichorice Perennial herb 1
Grindelia camporum Gumweed Perennial herb 15
Grindelia camporum var. bracteosa Bract gumweed Perennial herb 14
Grindelia camporum var. camporum Great valley gumweed Perennial herb 15
Grindelia hirsutula Gumweed Perennial herb 12
Grindelia hirsutula var. davyi Davy's gumweed Perennial herb 14
Grindelia hirsutula var. hallii San diego gumplant Perennial herb  
Grindelia hirsutula var. hirsutula Hairy gumweed Perennial herb 12
Grindelia stricta Gumweed Perennial herb 26
Grindelia stricta var. platyphylla Gumplant Perennial herb 16
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 8
Helenium puberulum Sneezeweed Perennial herb 9
Heliotropium curassavicum Chinese parsley Perennial herb 7
Heliotropium curassavicum var. oculatum Seaside heliotrope Perennial herb 1
Heliotropium procumbens var. procumbens Fourspike heliotrope Perennial herb  
Hoita macrostachya California hemp Perennial herb 5
Hoita orbicularis Creeping leather root Perennial herb 2
Hordeum brachyantherum Meadow barley Perennial grass 25
Hordeum brachyantherum ssp. brachyantherum Meadow barley Perennial grass 4
Hordeum brachyantherum ssp. californicum Meadow barley Perennial grass 7
Hordeum jubatum Fox tail barley Perennial grass 7
Horkelia bolanderi Bolander's horkelia Perennial herb  
Hosackia oblongifolia Narrow leaved lotus Perennial herb 2
Hosackia oblongifolia var. oblongifolia Narrow leaved lotus Perennial herb 1
Hydrocotyle ranunculoides Marsh pennywort Perennial herb 2
Hydrocotyle umbellata Marsh pennywort Perennial herb  
Hydrocotyle verticillata Whorled marsh pennywort Perennial herb 2
Hypericum scouleri Scouler's st john's wort Perennial herb 2
Imperata brevifolia Satintail Perennial grass 2
Iris longipetala Coast iris Perennial herb 23
Iris missouriensis Western blue flag Perennial herb 23
Iva axillaris Povertyweed Perennial herb  
Iva axillaris ssp. robustior Poverty weed Perennial herb  
Iva hayesiana San diego marsh elder Perennial herb 13
Ivesia lycopodioides ssp. lycopodioides Clubmoss ivesia Perennial herb  
Ivesia lycopodioides ssp. megalopetala Clubmoss ivesia Perennial herb  
Ivesia lycopodioides ssp. scandularis Clubmoss ivesia Perennial herb  
Jaumea carnosa Marsh jaumea Perennial herb 9
Juncus acutus Spiny rush Perennial grass (rhizomatous) 13
Juncus acutus ssp. leopoldii Wire grass Perennial grass (rhizomatous) 2
Juncus balticus Wire rush Perennial grass 20
Juncus balticus ssp. ater Baltic rush Perennial grass 1
Juncus bufonius var. occidentalis Round fruited toad rush Perennial grass  
Juncus covillei Coville'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 42
Juncus effusus ssp. pacificus Pacific rush Perennial grass 7
Juncus effusus var. brunneus Common bog rush Perennial grass 3
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 ensifolius Sword leaved rush Perennial grass 7
Juncus falcatus var. falcatus Sickle leafed rush Perennial grass  
Juncus macrandrus Long anthered rush Perennial grass  
Juncus macrophyllus Rush Perennial grass 1
Juncus marginatus var. marginatus Red anthered rush Perennial grass (rhizomatous)  
Juncus mexicanus Mexican rush Perennial grass 11
Juncus occidentalis Slender juncus Perennial grass 4
Juncus orthophyllus Straight leaved rush Perennial grass 1
Juncus oxymeris Pointed rush Perennial grass 1
Juncus patens Rush Perennial grass 47
Juncus phaeocephalus Brown headed rush Perennial grass 10
Juncus phaeocephalus var. paniculatus Rush Perennial grass  
Juncus rugulosus Wrinkled rush Perennial grass  
Juncus tenuis Slender rush Perennial grass 9
Juncus textilis Basket rush Perennial grass 8
Juncus torreyi Torrey's rush Perennial grass 5
Juncus xiphioides Iris leaved rush Perennial grass 15
Lactuca tatarica var. pulchella Blue lettuce Perennial herb  
Lemna aequinoctialis Duckweed Perennial herb  
Lemna gibba Gibbous duckweed Perennial herb  
Lemna minor Smaller duckweed Perennial herb 3
Lemna minuta Least duckweed Perennial herb  
Lemna turionifera Turion duckweed Perennial herb  
Lemna valdiviana Duckweed Perennial herb  
Lilium pardalinum California tiger lily Perennial herb 24
Lilium pardalinum ssp. pardalinum Leopard lily Perennial herb 2
Limonium californicum Marsh rosemary Perennial herb 13
Limosella subulata Delta mudwort Perennial herb  
Listera cordata var. nephrophylla Heartleaf twayblade Perennial herb  
Lobelia dunnii Dunn's lobelia Perennial herb 12
Lobelia dunnii var. serrata Dunn's lobelia Perennial herb 6
Lomatium caruifolium Caraway leaved lomatium Perennial herb  
Lotus formosissimus Coast lotus Perennial herb 7
Lotus oblongifolius var. cupreus Copper flowered bird's foot trefoil Perennial herb  
Ludwigia palustris Marsh purslane Perennial herb (aquatic)  
Ludwigia peploides ! Marsh purslane Perennial herb 1
Ludwigia peploides ssp. peploides Floating water primrose Perennial herb  
Lupinus latifolius Broad leaf lupine Perennial herb 9
Lupinus latifolius var. latifolius Broad leaf lupine Perennial herb  
Lupinus latifolius var. parishii Parish's lupine Perennial herb 2
Lupinus polyphyllus Bog lupine Perennial herb 25
Lupinus polyphyllus var. burkei Large leaved lupine Perennial herb 4
Lythrum californicum Common loosestrife Perennial herb  
Machaeranthera canescens var. ziegleri Ziegler's aster Perennial herb  
Maianthemum racemosum ssp. amplexicaule Feathery false lily of the valley Perennial herb 2
Malaxis monophyllos ssp. brachypoda Adder's mouth Perennial herb (bulb)  
Mentha arvensis American wild mint Perennial herb 5
Micranthes californica Greene's saxifrage Perennial herb  
Mimulus cardinalis Cardinal monkey flower Perennial herb 42
Mimulus moschatus Musk monkeyflower Perennial herb 1
Mimulus moschatus var. longiflorus Muskflower Perennial herb  
Mimulus moschatus var. moschatus Muskflower Perennial herb  
Mimulus primuloides Primrose monkeyflower Perennial herb 2
Mimulus primuloides ssp. linearifolius Primrose monkeyflower Perennial herb 2
Mimulus primuloides ssp. primuloides Primrose monkeyflower Perennial herb  
Mimulus primuloides var. pilosellus Primrose monkeyflower Perennial herb  
Mimulus primuloides var. primuloides Primrose monkeyflower Perennial herb  
Mimulus tilingii var. tilingii Tiling's monkeyflower Perennial herb  
Mitella caulescens Stemmed miterwort Perennial herb  
Montia chamissoi Spring beauty Perennial herb  
Montia parvifolia Showy rock montia Perennial herb 4
Muhlenbergia asperifolia Scratchgrass Perennial grass 1
Muhlenbergia richardsonis Richardson's muhly Perennial grass  
Muhlenbergia rigens Deergrass Perennial grass 64
Muhlenbergia utilis Aparejo grass Perennial grass  
Myriophyllum hippuroides Western milfoil Perennial herb (aquatic)  
Nasturtium officinale Watercress Perennial herb (aquatic) 3
Oenanthe sarmentosa Water parsley Perennial herb 8
Oenothera elata Evening primrose Perennial herb 17
Oenothera elata ssp. hirsutissima Evening primrose Perennial herb 3
Oenothera elata ssp. hookeri Evening primrose Perennial herb 16
Oenothera flava ssp. flava Dandelion evening primrose Perennial herb  
Oenothera villosa Hairy evening primrose Perennial herb  
Oenothera villosa ssp. strigosa Hairy evening primrose Perennial herb 18
Paspalum distichum Knot grass Perennial grass 2
Pedicularis groenlandica var. surrecta Elephant head lousewort Perennial herb 2
Perideridia parishii Parish's yampah Perennial herb  
Perideridia parishii ssp. latifolia Parish's yampah Perennial herb  
Persicaria amphibia Water smartweed Perennial herb (aquatic) 2
Persicaria hydropiperoides Water pepper Perennial herb  
Persicaria punctata Dotted smartweed Perennial herb 4
Phalacroseris bolanderi var. bolanderi Bolander's mock dandelion Perennial herb  
Phalacroseris bolanderi var. coronata Bolander's mock dandelion Perennial herb  
Phalaris arundinacea var. picta Ribbongrass Perennial grass 8
Phragmites australis Common reed Perennial grass 1
Phragmites australis ssp. americanus Perennial grass  
Phragmites australis ssp. berlandieri Perennial grass  
Phyla lanceolata Lance leaf lippia Perennial herb  
Phyla nodiflora Common lippia Perennial herb 11
Phyla nodiflora var. incisa Common lippia Perennial herb 10
Phyla nodiflora var. nodiflora Common lippia Perennial herb 10
Phyla nodiflora var. rosea Garden lippia Perennial herb 10
Phyllospadix scouleri Scouler's surfgrass Perennial herb  
Phyllospadix torreyi Surf grass Perennial herb  
Pinguicula macroceras var. macroceras California butterwort Perennial herb (carnivorous)  
Pinguicula vulgaris ssp. macroceras Horned butterwort Perennial herb (carnivorous)  
Plantago maritima var. juncoides Rush like maritime plantain Perennial herb 4
Platanthera dilatata Scentbottle Perennial herb  
Platanthera dilatata var. leucostachys Sierra bog orchid Perennial herb  
Platanthera sparsiflora Bog orchid Perennial herb  
Pleuropogon davyi Davy's semaphore grass Perennial grass (rhizomatous)  
Poa pratensis ssp. agassizensis Agassiz kentucky blue grass Perennial grass  
Polemonium occidentale ssp. occidentale Western polemonium Perennial herb 2
Polyctenium fremontii var. confertum Flat pod polyctenium Perennial herb  
Polygala cornuta Sierra milkwort Perennial herb  
Polygala cornuta var. cornuta Sierra milkwort Perennial herb  
Potamogeton alpinus ssp. tenuifolius Alpine pondweed Perennial herb (aquatic)  
Potamogeton epihydrus ssp. nuttallii Nuttall's pondweed Perennial herb (rhizomatous)  
Potamogeton foliosus Leafy pondweed Perennial herb (aquatic)  
Potamogeton foliosus ssp. foliosus Leafy pondweed Perennial herb (aquatic)  
Potamogeton foliosus var. fibrillosus Fibrous pondweed Perennial herb (rhizomatous)  
Potamogeton foliosus var. foliosus Pondweed Perennial herb (aquatic)  
Potamogeton nodosus Pondweed Perennial herb (aquatic)  
Potamogeton pusillus var. pusillus Small pondweed Perennial herb (aquatic)  
Potamogeton pusillus var. tenuissimus Narrow leaved pondweed Perennial herb (aquatic)  
Potentilla anserina Silver weed cinquefoil Perennial herb 15
Potentilla anserina ssp. pacifica Silverweed Perennial herb 4
Potentilla biennis Biennial cinquefoil Perennial herb 1
Potentilla drummondii ssp. breweri Brewer's cinquefoil Perennial herb 1
Potentilla drummondii ssp. bruceae Bruce's cinquefoil Perennial herb 1
Potentilla drummondii ssp. drummondii Drummond's cinquefoil Perennial herb 2
Potentilla glandulosa ssp. ewanii Ewan's cinquefoil Perennial herb  
Potentilla gracilis Northwest cinquefoil Perennial herb 12
Potentilla gracilis var. elmeri Elmer's cinquefoil Perennial herb 1
Potentilla gracilis var. fastigiata Slender cinquefoil Perennial herb  
Potentilla gracilis var. gracilis Slender cinquefoil Perennial herb  
Potentilla gracilis var. pulcherrima White leaved cinquefoil Perennial herb  
Pseudognaphalium stramineum Cottonbatting plant Perennial herb 3
Pyrrocoma racemosa Racemose pyrrocoma Perennial herb  
Pyrrocoma racemosa var. sessiliflora Racemose pyrrocoma Perennial herb  
Ranunculus aquatilis Whitewater crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. capillaceus Threadleaf crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. diffusus Whitewater crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. hispidulus White water crowfoot Perennial herb (aquatic)  
Ranunculus aquatilis var. subrigidus Longbeak buttercup Perennial herb (aquatic)  
Ranunculus canus Hartweg's buttercup Perennial herb  
Ranunculus canus var. ludovicianus Hartweg's buttercup Perennial herb  
Ranunculus cymbalaria Alkali buttercup Perennial herb  
Ranunculus cymbalaria var. saximontanus Rocky mountain buttercup Perennial herb  
Ranunculus longirostris Longbeak buttercup Perennial herb (aquatic)  
Rhynchospora globularis var. globularis Round headed beaked rush Perennial grass (rhizomatous)  
Rorippa gambelii Gambel's water cress Perennial herb (rhizomatous)  
Rudbeckia occidentalis var. occidentalis Western cone flower Perennial herb 10
Rumex californicus California dock Perennial herb  
Rumex crassus Willow leaved dock Perennial herb  
Rumex salicifolius Willow leaved dock Perennial herb 6
Rumex salicifolius var. crassus Willow leaved dock Perennial herb  
Rumex salicifolius var. denticulatus Smooth valved willow dock Perennial herb  
Rumex salicifolius var. lacustris Lake dock Perennial herb (aquatic)  
Rumex salicifolius var. salicifolius Willow dock Perennial herb 6
Rumex salicifolius var. transitorius Willow dock Perennial herb  
Rumex salicifolius var. triangulivalvis Willow dock Perennial herb  
Rumex transitorius Willow dock Perennial herb  
Ruppia cirrhosa Ditch grass Perennial herb (aquatic)  
Ruppia maritima Ditch grass Perennial herb (aquatic)  
Sagina saginoides Alpine pearlwort Perennial herb  
Sagittaria sanfordii Sanford's arrowhead Perennial herb (rhizomatous)  
Salicornia pacifica Pickleweed Perennial herb 10
Sanguisorba officinalis ssp. microcephala Great burnet Perennial herb (rhizomatous) 2
Saxifraga howellii Howell's saxifrage Perennial herb (rhizomatous)  
Saxifraga nuttallii Nuttall's saxifrage Perennial herb (rhizomatous)  
Scheuchzeria palustris ssp. americana American scheuchzeria Perennial herb (rhizomatous aquatic)  
Scheuchzeria palustris var. americana American scheuchzeria Perennial herb (rhizomatous)  
Schoenoplectus acutus Hardstem bulrush Perennial grass 24
Schoenoplectus acutus var. occidentalis Tule Perennial grass 1
Schoenoplectus americanus Chairmaker's bulrush Perennial grass 17
Schoenoplectus californicus California bulrush Perennial grass 16
Schoenoplectus pungens Common threesquare Perennial grass 2
Schoenoplectus pungens var. badius Common threesquare Perennial grass  
Schoenoplectus pungens var. longispicatus Common threesquare Perennial grass 2
Scirpus heterochaetus Slender bulrush Perennial grass (rhizomatous)  
Scirpus microcarpus Mountain bog bulrush Perennial grass 19
Scirpus pumilus Dwarf bulrush Perennial grass (rhizomatous)  
Scirpus subterminalis Water bulrush Perennial grass (rhizomatous)  
Scrophularia californica California bee plant Perennial herb 30
Scrophularia californica ssp. californica California bee plant Perennial herb 30
Scrophularia californica ssp. floribunda Common california figwort Perennial herb 30
Senecio indecorus Rayless mountain butterweed Perennial herb  
Setaria parviflora Marsh bristlegrass Perennial grass  
Sidalcea malviflora Wild hollyhock Perennial herb 20
Sidalcea malviflora ssp. asprella Harsh checker mallow Perennial herb (rhizomatous)  
Sidalcea malviflora ssp. californica California checker mallow Perennial herb (rhizomatous)  
Sidalcea malviflora ssp. malviflora Checker mallow Perennial herb (rhizomatous) 1
Sidalcea malviflora ssp. sparsifolia Few leafed checkerbloom Perennial herb (rhizomatous)  
Sidalcea neomexicana Mountain sidalcea Perennial herb 2
Sisyrinchium bellum Blue eyed grass Perennial herb 60
Sisyrinchium halophilum Nevada blue eyed grass Perennial herb  
Sisyrinchium idahoense Idaho blue eyed grass Perennial herb 5
Solanum douglasii Douglas' nightshade Perennial herb 5
Solidago confinis Southern goldenrod Perennial herb 3
Solidago spectabilis Showy goldenrod Perennial herb 3
Sparganium emersum ssp. emersum Emersed bur reed Perennial herb 2
Sparganium eurycarpum ssp. eurycarpum Bur reed Perennial herb 2
Spartina foliosa Pacific cordgrass Perennial grass  
Spergularia macrotheca Sticky sand spurry Perennial herb 1
Spergularia macrotheca var. leucantha White sticky sand spurry Perennial herb  
Spergularia macrotheca var. macrotheca Sticky sand spurry Perennial herb  
Sphenosciadium capitellatum Grayswamp whiteheads Perennial herb 2
Sporobolus airoides Alkali sacaton Perennial grass 20
Sporobolus airoides var. wrightii Alkali sacaton Perennial grass 7
Stachys ajugoides Hedge nettle Perennial herb 6
Stachys ajugoides var. ajugoides Ajuga hedge nettle Perennial herb 6
Stachys ajugoides var. rigida Hedge nettle Perennial herb  
Stachys albens Cobwebby hedge nettle Perennial herb 8
Stachys palustris ssp. pilosa Marsh hedge nettle Perennial herb 1
Stachys rigida Rough hedgenettle Perennial herb 2
Stachys rigida var. quercetorum Rough hedgenettle Perennial herb  
Stachys rigida var. rigida Rough hedgenettle Perennial herb  
Stellaria longipes var. longipes Long stalked starwort Perennial herb  
Stipa diegoensis San diego county needle grass Perennial grass  
Stuckenia pectinata Sago pondweed Perennial herb (aquatic)  
Stuckenia striata Broadleaf pondweed Perennial herb (aquatic)  
Suaeda esteroa Estuary seablite Perennial herb 1
Suaeda nigra Bush seepweed Perennial herb 3
Symphyotrichum chilense Pacific aster Perennial herb 34
Symphyotrichum chilense var. chilense Pacific aster Perennial herb 11
Symphyotrichum chilense var. invenustum Pacific aster Perennial herb 9
Symphyotrichum chilense var. medium Pacific aster Perennial herb 9
Symphyotrichum lanceolatum White panicle aster Perennial herb  
Symphyotrichum lanceolatum var. hesperium Western lance leaf aster Perennial herb  
Symphyotrichum subulatum var. parviflorum Eastern annual saltmarsh aster Perennial herb  
Thalictrum fendleri Fendler's meadow rue Perennial herb 12
Thalictrum fendleri var. fendleri Fendler's meadow rue Perennial herb  
Thalictrum fendleri var. polycarpum Torrey's meadow rue Perennial herb 13
Trautvetteria caroliniensis var. occidentalis Western trautvetteria Perennial herb 1
Trientalis europaea Arctic starflower Perennial herb  
Trifolium eriocephalum var. eriocephalum Hairy head clover Perennial herb  
Trifolium eriocephalum var. harneyense Cusick's clover Perennial herb  
Trifolium longipes Long stalked clover Perennial herb  
Trifolium longipes ssp. atrorubens Longstalk clover Perennial herb  
Trifolium longipes var. elmeri Elmer's clover Perennial herb  
Trifolium longipes var. longipes Long stalked clover Perennial herb  
Trifolium longipes var. nevadense Mountain clover Perennial herb  
Trifolium longipes var. oreganum Oregon clover Perennial herb  
Trifolium longipes var. shastense Shasta clover Perennial herb  
Trifolium monanthum Carpet clover Perennial herb  
Trifolium monanthum ssp. grantianum Grant's carpet clover Perennial herb  
Trifolium monanthum ssp. monanthum Carpet clover Perennial herb  
Trifolium monanthum var. grantianum Grant's carpet clover Perennial herb  
Trifolium monanthum var. monanthum Mountain carpet clover Perennial herb  
Trifolium wormskioldii Cow clover Perennial herb 5
Trifolium wormskioldii var. arizonicum Spinytooth clover Perennial herb  
Trifolium wormskioldii var. siskiyouense Siskiyou clover Perennial herb  
Triglochin concinna Arrow grass Perennial herb (aquatic)  
Triglochin concinna var. concinna Arrow grass Perennial herb (aquatic)  
Triglochin maritima Seaside arrow grass Perennial herb (aquatic) 5
Triglochin striata Three ribbed arrow grass Perennial herb (aquatic)  
Trimorpha acris var. debilis Northern daisy Perennial herb  
Triteleia ixioides Pretty face Perennial herb 6
Triteleia ixioides ssp. ixioides Golden brodiaea Perennial herb 1
Typha domingensis Cattail Perennial herb 5
Typha latifolia Broadleaf cattail Perennial herb (aquatic) 22
Urtica dioica Stinging nettle Perennial herb 10
Urtica dioica ssp. gracilis Nettle Perennial herb  
Urtica dioica ssp. holosericea Stinging nettle Perennial herb 5
Veratrum californicum California false hellebore Perennial herb 3
Veratrum viride var. eschscholzianum Green false hellebore Perennial herb 4
Verbena lasiostachys Western vervain Perennial herb 17
Verbena lasiostachys var. lasiostachys Vervain Perennial herb 17
Verbena lasiostachys var. scabrida Robust vervain Perennial herb 17
Veronica americana American brooklime Perennial herb 6
Veronica serpyllifolia Thymeleaf speedwell Perennial herb  
Vicia americana American vetch Perennial herb, Vine 4
Vicia americana ssp. americana American vetch Perennial herb, Vine  
Vicia americana var. americana Vetch Perennial herb, Vine  
Viola adunca var. adunca Western bog violet Perennial herb 1
Viola adunca var. kirkii Yosemite dog violet Perennial herb 1
Viola langsdorfii Langsdorf's violet Perennial herb  
Viola macloskeyi Macloskey's violet Perennial herb 1
Viola macloskeyi ssp. pallens Small white violet Perennial herb 1
Viola sororia ssp. affinis Northern bog violet Perennial herb  
Zannichellia palustris Horned pondweed Perennial herb  
Zigadenus micranthus var. fontanus Fountain death camas Perennial herb  
Zostera marina Eel grass Perennial herb  
  Lifeform: Fern21 plants
  Lifeform: Shrub46 plants
Allenrolfea occidentalis Iodine bush Shrub  
Atriplex lentiformis Big saltbush Shrub 33
Atriplex lentiformis ssp. breweri Quailbush Shrub 14
Atriplex lentiformis ssp. lentiformis Brewer's saltbrush Shrub 3
Atriplex lentiformis ssp. torreyi Torrey's saltbush Shrub  
Baccharis salicifolia Mule fat Shrub 28
Baccharis salicifolia ssp. salicifolia Mule fat Shrub  
Baccharis salicina Willow baccharis Shrub 7
Batis maritima Saltwort Shrub  
Cephalanthus occidentalis var. californicus California buttonbush Shrub 15
Cornus glabrata Brown dogwood Tree, Shrub 9
Cornus sericea ssp. sericea Red osier dogwood Shrub 34
Empetrum nigrum ssp. hermaphroditum Black crowberry Shrub 1
Empetrum nigrum ssp. nigrum Black crowberry Shrub  
Isocoma menziesii White flowered goldenbush Shrub 15
Isocoma menziesii var. menziesii Menzies' goldenbush Shrub 4
Isocoma menziesii var. sedoides White flowered dune goldenbush Shrub 1
Isocoma menziesii var. vernonioides Green leaved dune goldenbush Shrub  
Kalmia polifolia ssp. microphylla Bog laurel Shrub 2
Kalmia polifolia ssp. polifolia Mountain laurel Shrub 1
Morella californica California wax myrtle Shrub 54
Pluchea sericea Arrow weed Shrub 7
Polygala cornuta var. fishiae Fish's milkwort Shrub  
Prosopis pubescens Screw bean mesquite Tree, Shrub 7
Ribes aureum Golden currant Shrub 51
Ribes aureum var. gracillimum Golden currant Shrub 9
Ribes divaricatum var. divaricatum Spreading gooseberry Shrub  
Ribes nevadense Mountain pink currant Shrub 10
Ribes viscosissimum var. hallii Hall's sticky currant Shrub  
Rosa californica California wild rose Shrub 53
Rubus spectabilis var. franciscanus Salmon berry Shrub 22
Rubus spectabilis var. spectabilis Salmonberry Shrub 22
Salix brachycarpa ssp. brachycarpa Short fruited willow Shrub  
Salix breweri Serpentine willow Shrub 1
Salix exigua Narrowleaf willow Tree, Shrub 26
Salix exigua var. exigua Narrowleaf willow Tree, Shrub 2
Salix exigua var. hindsiana Sandbar willow Tree, Shrub 25
Salix lasiolepis Arroyo willow Tree, Shrub 24
Salix lasiolepis var. bigelovii Arroyo willow Tree, Shrub 24
Salix melanopsis Dusky willow Tree, Shrub 4
Salix planifolia ssp. planifolia Tea leaved willow Shrub  
Salix reticulata ssp. nivalis Snow willow Shrub  
Suaeda californica California seablite Shrub 1
Suaeda taxifolia Seablite Shrub 4
Vaccinium uliginosum ssp. uliginosum European blueberry Shrub  
Vitis girdiana Southern california grape Vine, Shrub 12
  Lifeform: Tree16 plants
 
NB: found in Ventura County is intended to indicate only plants found growing in the wild. However, the evidence is not always clear, and may occasionally include plants found in cultivation. To verify the wild presence of any particular plant in the list above, please click through to Calflora and look closely at the observations in this county.