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Criteria:   Family = 'Polygonaceae'
501  records include photos for these plants ! potentially invasive
 non-native 
# number of sources
Scientific Name Common Name Lifeform #
Acanthoscyphus parishii Parish's oxytheca Annual herb  
Acanthoscyphus parishii var. abramsii Abrams' oxytheca Annual herb  
Acanthoscyphus parishii var. cienegensis Cienega seca oxytheca Annual herb  
Acanthoscyphus parishii var. goodmaniana Cushenbury oxytheca Annual herb  
Acanthoscyphus parishii var. parishii Parish's oxytheca Annual herb  
Aconogonon davisiae Davis knotweed Perennial herb  
Aconogonon newberryi Newberry's smartweed Perennial herb  
Aconogonon phytolaccifolium Pokeweed knotweed Perennial herb  
Aristocapsa insignis Indian valley spineflower Annual herb  
Bistorta bistortoides American bistort Perennial herb  
Bistorta officinalis Perennial herb  
Centrostegia thurberi Thurber spiny herb Annual herb  
Chorizanthe angustifolia Narrow leaf spineflower Annual herb  
Chorizanthe biloba Two lobed spineflower Annual herb  
Chorizanthe biloba var. biloba Two lobed spineflower Annual herb  
Chorizanthe biloba var. immemora San benito spineflower Annual herb  
Chorizanthe blakleyi Blakley's spineflower Annual herb  
Chorizanthe brevicornu Brittle spine flower Annual herb  
Chorizanthe brevicornu var. brevicornu Brittle spineflower Annual herb  
Chorizanthe brevicornu var. spathulata Broad leaf brittle spineflower Annual herb  
Chorizanthe breweri Brewer's spineflower Annual herb  
Chorizanthe clevelandii Cleveland's spineflower Annual herb  
Chorizanthe corrugata Wrinkled spineflower Annual herb  
Chorizanthe cuspidata San francisco spineflower Annual herb  
Chorizanthe cuspidata var. cuspidata San francisco bay spineflower Annual herb  
Chorizanthe cuspidata var. villosa Woolly headed spineflower Annual herb  
Chorizanthe diffusa Diffuse spineflower Annual herb  
Chorizanthe douglasii Douglas's spineflower Annual herb 1
Chorizanthe fimbriata Fringed spineflower Annual herb  
Chorizanthe fimbriata var. fimbriata Fringed spineflower Annual herb  
Chorizanthe fimbriata var. laciniata Lace fringed spineflower Annual herb  
Chorizanthe howellii Howell's spineflower Annual herb  
Chorizanthe leptotheca Peninsular spineflower Annual herb  
Chorizanthe membranacea Pink spineflower Annual herb 1
Chorizanthe minutiflora Fort ord spineflower Annual herb  
Chorizanthe obovata Spoon sepal spineflower Annual herb  
Chorizanthe orcuttiana Orcutt's spineflower Annual herb  
Chorizanthe palmeri Palmer's spineflower Annual herb  
Chorizanthe parryi Parry's spineflower Annual herb  
Chorizanthe parryi var. fernandina San fernando valley 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 pungens Monterey spineflower Annual herb  
Chorizanthe pungens var. hartwegiana Ben lomond spineflower Annual herb  
Chorizanthe pungens var. pungens Monterey spineflower Annual herb  
Chorizanthe rectispina Straight awned spineflower Annual herb  
Chorizanthe rigida Rigid spiny herb Annual herb  
Chorizanthe robusta Robust spineflower Annual herb  
Chorizanthe robusta var. hartwegii Scott's valley spineflower Annual herb  
Chorizanthe robusta var. robusta Robust spineflower Annual herb  
Chorizanthe spinosa Mojave spineflower Annual herb  
Chorizanthe staticoides Turkish rugging Annual herb 3
Chorizanthe stellulata Starlet spineflower Annual herb  
Chorizanthe uniaristata One awn spineflower Annual herb  
Chorizanthe valida Sonoma spineflower Annual herb  
Chorizanthe ventricosa Priest valley spineflower Annual herb 1
Chorizanthe watsonii Watson's spineflower Annual herb  
Chorizanthe wheeleri Wheeler'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  
Dedeckera eurekensis July gold Shrub  
Dodecahema leptoceras Slender horned spineflower Annual herb  
Emex australis Southern three cornered jack Annual herb  
Emex spinosa ! Devil's thorn Annual herb 2
Eriogonum Xblissianum Annual herb 1
Eriogonum alexanderae Alexander's buckwheat Perennial herb  
Eriogonum alpinum Trinity buckwheat Perennial herb (rhizomatous)  
Eriogonum ampullaceum Mono buckwheat Annual herb  
Eriogonum angulosum Angled stem buckwheat Annual herb  
Eriogonum apiculatum San jacinto buckwheat Annual herb  
Eriogonum apiculatum var. apiculatum Annual herb  
Eriogonum apricum Ione buckwheat Perennial herb  
Eriogonum apricum var. apricum Ione buckwheat Perennial herb  
Eriogonum apricum var. prostratum Irish hill buckwheat Perennial herb  
Eriogonum arborescens Island buckwheat Shrub 18
Eriogonum argillosum Clay loving buckwheat Annual herb  
Eriogonum baileyi Bailey buckwheat Annual herb  
Eriogonum baileyi var. baileyi Bailey's buckwheat Annual herb  
Eriogonum baileyi var. praebens Bailey's buckwheat Annual herb  
Eriogonum beatleyae Beatley's buckwheat Perennial herb  
Eriogonum bifurcatum Forked buckwheat Annual herb  
Eriogonum brachyanthum Yellow buckwheat Annual herb  
Eriogonum brachypodum Parry's buckwheat Annual herb  
Eriogonum breedlovei Piute buckwheat Perennial herb 1
Eriogonum breedlovei var. breedlovei Breedlove's buckwheat Perennial herb  
Eriogonum breedlovei var. shevockii The needles buckwheat Perennial herb  
Eriogonum butterworthianum Butterworth's buckwheat Perennial herb  
Eriogonum caespitosum Clumping buckwheat Perennial herb 3
Eriogonum callistum Tehachapi buckwheat Perennial herb  
Eriogonum cedrorum The cedars buckwheat Perennial herb  
Eriogonum cernuum Nodding buckwheat Annual herb  
Eriogonum cernuum var. cernuum Nodding buckwheat Annual herb  
Eriogonum cernuum var. viminale Nodding buckwheat Annual herb  
Eriogonum cinereum Coastal buckwheat Shrub 11
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 collinum Hill buckwheat Annual herb  
Eriogonum compositum Arrowleaf buckwheat Perennial herb 3
Eriogonum compositum var. compositum Arrow leaf buckwheat Perennial herb  
Eriogonum congdonii Congdon's buckwheat Shrub  
Eriogonum contiguum Reveal's buckwheat Annual herb  
Eriogonum corymbosum Crispleaf buckwheat Perennial herb  
Eriogonum covilleanum Coville's buckwheat Annual herb  
Eriogonum crocatum Conejo buckwheat Perennial herb 14
Eriogonum crosbyae Crosby's buckwheat Perennial herb  
Eriogonum dasyanthemum Chaparral 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. nevadense Flat topped buckwheat Annual herb  
Eriogonum deflexum var. rectum Flat topped buckwheat Annual herb  
Eriogonum deserticola Colorado desert buckwheat Shrub  
Eriogonum diclinum Jaynes canyon buckwheat Perennial herb  
Eriogonum douglasii Douglas' buckwheat Perennial herb 1
Eriogonum douglasii var. douglasii Douglas' buckwheat Perennial herb  
Eriogonum douglasii var. meridionale Douglas' buckwheat Perennial herb 1
Eriogonum eastwoodianum Eastwood's buckwheat Annual herb  
Eriogonum effusum Spreading buckwheat Perennial herb  
Eriogonum effusum var. effusum Spreading buckwheat Perennial herb  
Eriogonum elatum Tall buckwheat Perennial herb  
Eriogonum elatum var. elatum Tall buckwheat Perennial herb  
Eriogonum elatum var. villosum Long hairy tall buckwheat Perennial herb  
Eriogonum elegans Elegant buckwheat Annual herb  
Eriogonum elongatum Longstem buckwheat Perennial herb 4
Eriogonum elongatum var. elongatum Long stemmed buckwheat Perennial herb 5
Eriogonum eremicola Wildrose canyon buckwheat Annual herb  
Eriogonum ericifolium var. thornei Thorne's buckwheat Perennial herb  
Eriogonum esmeraldense Esmeralda buckwheat Annual herb  
Eriogonum esmeraldense var. esmeraldense Esmeralda buckwheat Annual herb  
Eriogonum esmeraldense var. toiyabense Toiyabe buckwheat Annual herb  
Eriogonum evanidum Vanishing wild buckwheat Annual herb  
Eriogonum exaltatum Ladder buckwheat Perennial herb  
Eriogonum fasciculatum California buckwheat Shrub 41
Eriogonum fasciculatum var. fasciculatum California buckwheat Shrub 2
Eriogonum fasciculatum var. flavoviride California buckwheat Shrub  
Eriogonum fasciculatum var. foliolosum California buckwheat Shrub 5
Eriogonum fasciculatum var. polifolium California buckwheat Shrub 3
Eriogonum foliosum Leafy buckwheat Annual herb  
Eriogonum giganteum St. Catherine's lace Shrub 29
Eriogonum giganteum var. compactum Santa barbara island buckwheat Shrub 1
Eriogonum giganteum var. formosum San clemente island buckwheat Shrub 1
Eriogonum giganteum var. giganteum Santa catalina island buckwheat Shrub 1
Eriogonum gilmanii Gilman's buckwheat Perennial herb  
Eriogonum glandulosum Glandular buckwheat Annual herb  
Eriogonum gossypinum Cottony 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 gracilipes White mountains buckwheat Perennial herb 1
Eriogonum gracillimum Rose and white buckwheat Annual herb 1
Eriogonum grande Island buckwheat Perennial herb 16
Eriogonum grande var. grande Island buckwheat Perennial herb 2
Eriogonum grande var. rubescens Red flowered buckwheat Perennial herb 29
Eriogonum grande var. timorum San nicolas island buckwheat Perennial herb 1
Eriogonum heermannii Heerman buckwheat Shrub  
Eriogonum heermannii var. argense Heermann's buckwheat Shrub  
Eriogonum heermannii var. floccosum Clark mtn. buckwheat Shrub  
Eriogonum heermannii var. heermannii Heermann's buckwheat Shrub  
Eriogonum heermannii var. humilius Heermann's buckwheat Shrub  
Eriogonum heermannii var. occidentale Western heermann's buckwheat Shrub  
Eriogonum heermannii var. sulcatum Heermann's buckwheat Shrub  
Eriogonum heracleoides Parsnipflower buckwheat Perennial herb 4
Eriogonum heracleoides var. heracleoides Parsnip flowered buckwheat Perennial herb 1
Eriogonum hirtellum Klamath mtn. buckwheat Perennial herb (rhizomatous)  
Eriogonum hirtiflorum Hairy flowered buckwheat Annual herb  
Eriogonum hoffmannii Hoffmann's buckwheat Annual herb  
Eriogonum hoffmannii var. hoffmannii Hoffmann's buckwheat Annual herb  
Eriogonum hoffmannii var. robustius Robust hoffmann's buckwheat Annual herb  
Eriogonum hookeri Hooker's buckwheat Annual herb  
Eriogonum incanum Frosted buckwheat Perennial herb 1
Eriogonum inerme Unarmed buckwheat Annual herb  
Eriogonum inerme var. hispidulum Unarmed buckwheat Annual herb  
Eriogonum inerme var. inerme Unarmed buckwheat Annual 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 intrafractum Jointed buckwheat Perennial herb  
Eriogonum kelloggii Kellogg's buckwheat Perennial herb  
Eriogonum kennedyi Kennedy's buckwheat Perennial herb 4
Eriogonum kennedyi var. alpigenum Southern alpine buckwheat Perennial herb  
Eriogonum kennedyi var. austromontanum Southern mountain buckwheat Perennial herb  
Eriogonum kennedyi var. kennedyi Kennedy's buckwheat Perennial herb 1
Eriogonum kennedyi var. pinicola Kern buckwheat Perennial herb  
Eriogonum kennedyi var. purpusii Purpus' buckwheat Perennial herb  
Eriogonum latens Inyo buckwheat Perennial herb  
Eriogonum latifolium Coast buckwheat Perennial herb 23
Eriogonum libertini Dubakella mtn. buckwheat Perennial herb  
Eriogonum lobbii Lobb's buckwheat Perennial herb  
Eriogonum lobbii var. lobbii Lobb's buckwheat Perennial herb  
Eriogonum luteolum Wicker buckwheat Annual herb  
Eriogonum luteolum var. caninum Tiburon buckwheat Annual herb  
Eriogonum luteolum var. luteolum Golden buckwheat Annual herb  
Eriogonum luteolum var. pedunculatum Goldencarpet buckwheat Annual herb  
Eriogonum luteolum var. saltuarium Goldencarpet buckwheat Annual herb  
Eriogonum maculatum Angle stermed buckwheat Annual herb  
Eriogonum marifolium Marum leaved buckwheat Shrub  
Eriogonum marifolium var. cupulatum Marum leaved buckwheat Shrub  
Eriogonum marifolium var. marifolium Marum leaved buckwheat Shrub  
Eriogonum mensicola Crescent buckwheat Perennial herb, Shrub  
Eriogonum microthecum Slender buckwheat Shrub  
Eriogonum microthecum var. alpinum Alpine slender buckwheat Shrub  
Eriogonum microthecum var. ambiguum Obscure buckwheat Shrub  
Eriogonum microthecum var. corymbosoides San bernardino buckwheat Shrub  
Eriogonum microthecum var. johnstonii Johnston's buckwheat Shrub  
Eriogonum microthecum var. lacus-ursi Bear lake buckwheat Shrub  
Eriogonum microthecum var. lapidicola Inyo mtns. buckwheat Shrub  
Eriogonum microthecum var. laxiflorum Bush eriogonum Shrub  
Eriogonum microthecum var. microthecum Slender buckwheat Shrub  
Eriogonum microthecum var. panamintense Panamint mtns. buckwheat Shrub  
Eriogonum microthecum var. schoolcraftii Schoolcraft's wild buckwheat Shrub  
Eriogonum microthecum var. simpsonii Simpson's buckwheat Shrub  
Eriogonum mohavense Western mojave buckwheat Annual herb  
Eriogonum molestum Pineland buckwheat Annual herb  
Eriogonum nervulosum Snow mtn. buckwheat Perennial herb (rhizomatous)  
Eriogonum nidularium Whisk broom Annual herb  
Eriogonum niveum Snow buckwheat Perennial herb  
Eriogonum nortonii Pinnacles buckwheat Annual herb  
Eriogonum nudum Naked buckwheat Shrub 15
Eriogonum nudum var. auriculatum Nude buckwheat Shrub 1
Eriogonum nudum var. decurrens Ben lomond buckwheat Perennial herb  
Eriogonum nudum var. deductum Naked buckwheat Shrub  
Eriogonum nudum var. indictum Naked buckwheat Perennial herb  
Eriogonum nudum var. murinum Mouse buckwheat Perennial herb  
Eriogonum nudum var. nudum Nude buckwheat Shrub  
Eriogonum nudum var. oblongifolium Oblong leaved buckwheat Shrub  
Eriogonum nudum var. paralinum Del norte buckwheat Perennial herb  
Eriogonum nudum var. pauciflorum Long trumpet Shrub  
Eriogonum nudum var. psychicola Antioch dunes buckwheat Perennial herb  
Eriogonum nudum var. pubiflorum Hairy flowered buckwheat Annual herb  
Eriogonum nudum var. regirivum Kings river buckwheat Perennial herb  
Eriogonum nudum var. scapigerum Naked buckwheat Shrub  
Eriogonum nudum var. westonii Weston's buckwheat Shrub  
Eriogonum nummulare Round leaf buckwheat Shrub  
Eriogonum nutans Dugway buckwheat Annual herb  
Eriogonum nutans var. glabratum Dugway buckwheat Annual herb  
Eriogonum nutans var. nutans Nodding buckwheat Annual herb  
Eriogonum oblongifolium Coast buckwheat Perennial herb 23
Eriogonum ochrocephalum White woolly buckwheat Perennial herb  
Eriogonum ochrocephalum var. alexanderae Alexander's buckwheat Perennial herb  
Eriogonum ochrocephalum var. ochrocephalum White woolly buckwheat Perennial herb  
Eriogonum ordii Fort mojave buckwheat Annual herb  
Eriogonum ovalifolium Oval leaved eriogonum Perennial herb 3
Eriogonum ovalifolium var. caelestinum Cushion buckwheat Perennial herb  
Eriogonum ovalifolium var. depressum Cushion buckwheat Perennial herb 1
Eriogonum ovalifolium var. eximium Cushion buckwheat Perennial herb  
Eriogonum ovalifolium var. monarchense Monarch buckwheat Perennial herb  
Eriogonum ovalifolium var. nivale Cushion buckwheat Perennial herb 1
Eriogonum ovalifolium var. ovalifolium Cushion buckwheat Perennial herb  
Eriogonum ovalifolium var. purpureum Purple cushion buckwheat Perennial herb  
Eriogonum ovalifolium var. vineum Cushenbury buckwheat Perennial herb  
Eriogonum palmerianum Palmer's buckwheat Annual herb  
Eriogonum panamintense Panamint mountain buckwheat Perennial herb, Shrub 2
Eriogonum panamintense var. mensicola Panamint mountain buckwheat Perennial herb, Shrub  
Eriogonum panamintense var. panamintense Panamint mountain buckwheat Perennial herb, Shrub  
Eriogonum parishii Parish's buckwheat Annual herb 1
Eriogonum parvifolium Sea cliff buckwheat Shrub 25
Eriogonum pendulum Waldo buckwheat Perennial herb  
Eriogonum plumatella Flat topped buckwheat Shrub  
Eriogonum polycladon Sorrel buckwheat Perennial herb, Shrub  
Eriogonum polypodum Tulare county buckwheat Perennial herb  
Eriogonum prattenianum Pratten's buckwheat Perennial herb  
Eriogonum prattenianum var. avium Kettle dome buckwheat Perennial herb  
Eriogonum prattenianum var. prattenianum Pratten's buckwheat Perennial herb  
Eriogonum prociduum Prostrate buckwheat Perennial herb  
Eriogonum prociduum var. prociduum Prostrate buckwheat Perennial herb  
Eriogonum puberulum Downy buckwheat Annual herb  
Eriogonum pusillum Yellow turban Annual herb  
Eriogonum pyrolifolium Shasta buckwheat Perennial herb, Shrub  
Eriogonum pyrolifolium var. coryphaeum Shasta buckwheat Perennial herb, Shrub  
Eriogonum pyrolifolium var. pyrolifolium Pumice buckwheat Perennial herb, Shrub  
Eriogonum reniforme Kidney leaf buckwheat Annual herb  
Eriogonum rixfordii Rixford's buckwheat Annual herb  
Eriogonum rosense Rosy buckwheat Perennial herb  
Eriogonum rosense var. rosense Rosy buckwheat Perennial herb  
Eriogonum roseum Wand buckwheat Annual herb 3
Eriogonum rupinum Wyman creek buckwheat Perennial herb, Shrub  
Eriogonum saxatile Rock buckwheat Perennial herb  
Eriogonum shockleyi Shockley's buckwheat Perennial herb  
Eriogonum shockleyi var. shockleyi Shockley's buckwheat Perennial herb  
Eriogonum siskiyouense Siskiyou buckwheat Perennial herb 2
Eriogonum spectabile Barron's buckwheat Shrub  
Eriogonum spergulinum Wild buckwheat Annual herb  
Eriogonum spergulinum var. pratense Spurry buckwheat Annual herb  
Eriogonum spergulinum var. reddingianum Spurry buckwheat Annual herb  
Eriogonum spergulinum var. spergulinum Spurry buckwheat Annual herb  
Eriogonum sphaerocephalum Round headed buckwheat Perennial herb  
Eriogonum sphaerocephalum var. halimioides Round headed buckwheat Perennial herb  
Eriogonum sphaerocephalum var. sphaerocephalum Round headed buckwheat Perennial herb  
Eriogonum strictum Blue mountain buckwheat Perennial herb 1
Eriogonum strictum var. anserinum Blue mountain buckwheat Perennial herb  
Eriogonum strictum var. greenei Greene's buckwheat Perennial herb  
Eriogonum strictum var. proliferum Blue mountain buckwheat Perennial herb 1
Eriogonum temblorense Temblor buckwheat Annual herb  
Eriogonum ternatum Ternate buckwheat Perennial herb  
Eriogonum thomasii Thomas eriogonum Annual herb  
Eriogonum thornei Thorne's buckwheat Perennial 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 tripodum Tripod buckwheat Shrub  
Eriogonum truncatum Mt. diablo buckwheat Annual herb  
Eriogonum twisselmannii Twisselmann's buckwheat Perennial herb  
Eriogonum umbellatum Sulphur buckwheat Perennial herb 26
Eriogonum umbellatum var. ahartii Ahart's buckwheat Perennial herb  
Eriogonum umbellatum var. argus Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. bahiiforme Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. canifolium Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. chlorothamnus Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. covillei Coville's sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. dichrocephalum Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. dumosum Many flowered sulfur flower Perennial herb 3
Eriogonum umbellatum var. furcosum Desert sulfur buckwheat Perennial herb  
Eriogonum umbellatum var. glaberrimum Green buckwheat Perennial herb  
Eriogonum umbellatum var. goodmanii Serpentine sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. humistratum Mt. Eddy buckwheat Perennial herb  
Eriogonum umbellatum var. juniporinum Juniper buckwheat Perennial herb  
Eriogonum umbellatum var. lautum Scott valley buckwheat Perennial herb  
Eriogonum umbellatum var. majus Sulphur-flower buckwheat Perennial herb 3
Eriogonum umbellatum var. minus Alpine sulfur flowered buckwheat Perennial herb  
Eriogonum umbellatum var. modocense Sulphur flower buckwheat Perennial herb  
Eriogonum umbellatum var. munzii Munz's buckwheat Perennial herb  
Eriogonum umbellatum var. nelsoniorum Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. nevadense Sierra sulfur flower Perennial herb 1
Eriogonum umbellatum var. polyanthum Many flowered sulfur flower Perennial herb 5
Eriogonum umbellatum var. porteri Perennial herb  
Eriogonum umbellatum var. smallianum Sulphur buckwheat Perennial herb  
Eriogonum umbellatum var. speciosum Showy sulfur buckwheat Perennial herb  
Eriogonum umbellatum var. subaridum Desert sulfur buckwheat Perennial herb  
Eriogonum umbellatum var. torreyanum Donner pass buckwheat Perennial herb  
Eriogonum umbellatum var. versicolor Sulphur flowered buckwheat Perennial herb  
Eriogonum ursinum Bear buckwheat Perennial herb 4
Eriogonum ursinum var. erubescens Blushing wild buckwheat Perennial herb  
Eriogonum ursinum var. ursinum Bear buckwheat Perennial herb  
Eriogonum vestitum Idria buckwheat Annual herb  
Eriogonum vimineum Wicker stemmed eriogonum Annual herb 2
Eriogonum viridescens Bright green buckwheat Annual herb  
Eriogonum wrightii Wright's buckwheat Perennial herb, Shrub 5
Eriogonum wrightii var. membranaceum Wright s buckwheat Perennial herb, Shrub  
Eriogonum wrightii var. nodosum Wright s buckwheat Perennial herb, Shrub  
Eriogonum wrightii var. olanchense Olancha peak buckwheat Perennial herb  
Eriogonum wrightii var. subscaposum Wright's buckwheat Perennial herb, Shrub 2
Eriogonum wrightii var. trachygonum Wright s buckwheat Perennial herb, Shrub  
Eriogonum wrightii var. wrightii Wright's buckwheat Perennial herb, Shrub 1
Fagopyrum esculentum Domestic buckwheat Annual herb  
Fagopyrum tataricum Tartary buckwheat Annual herb  
Fallopia Xbohemica ! Bohemian knotweed Perennial herb  
Fallopia baldschuanica Bukhara fleeceflower Vine 3
Fallopia convolvulus Black bindweed Annual herb  
Fallopia japonica ! Japanese knotweed Perennial herb 1
Fallopia sachalinensis ! Giant knotweed Perennial herb  
Gilmania luteola Golden carpet Annual herb  
Goodmania luteola Golden goodmania Annual herb  
Hollisteria lanata False spineflower Annual herb  
Homalocladium platycladum Ribbonbush Perennial herb 2
Johanneshowellia puberula Red creek buckwheat Annual herb  
Lastarriaea coriacea Leather spineflower Annual herb  
Mucronea californica California spineflower Annual herb 2
Mucronea perfoliata Perfoliate spineflower Annual herb  
Muehlenbeckia complexa Mattress vine Vine 3
Muehlenbeckia hastatula Hastate maidenhair vine Vine  
Muehlenbeckia hastulata Hastate maidenhair vine Vine  
Muehlenbeckia hastulata var. hastulata Vine  
Nemacaulis denudata Woolly heads Annual herb  
Nemacaulis denudata var. denudata Coast woolly heads Annual herb  
Nemacaulis denudata var. gracilis Slender woolly heads Annual herb  
Oxyria digyna Alpine mountain sorrel Perennial herb  
Oxytheca caryophylloides Chickweed oxytheca Annual herb  
Oxytheca dendroidea Narrowleaf oxytheca Annual herb  
Oxytheca dendroidea ssp. dendroidea Tall 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 perfoliata Roundleaf puncturebract Annual herb  
Oxytheca trilobata Three lobed oxytheca Annual herb  
Oxytheca watsonii Watson's oxytheca Annual herb  
Persicaria amphibia Water smartweed Perennial herb (aquatic) 2
Persicaria capitata Himalayan smartweed Perennial herb 1
Persicaria hydropiper Common smartweed Annual herb  
Persicaria hydropiperoides Water pepper Perennial herb  
Persicaria lapathifolia Common knotweed Annual herb  
Persicaria maculosa Spotted ladysthumb Annual herb  
Persicaria orientalis Kiss me over the garden gate Annual herb 1
Persicaria pensylvanica Pinkweed Annual herb  
Persicaria punctata Dotted smartweed Perennial herb 4
Persicaria wallichii ! Himalayan knotweed Perennial herb  
Polygonum alpinum Alaska wild rhubarb Annual, Perennial herb  
Polygonum amphibium Water smartweed Perennial herb 2
Polygonum amphibium var. emersum Water smartweed Perennial herb (aquatic) 1
Polygonum amphibium var. stipulaceum Water smartweed Perennial herb 1
Polygonum arenastrum Common knotweed Annual, Perennial herb  
Polygonum argyrocoleon Silver sheath knotweed Annual herb  
Polygonum austiniae Rebecca austin's knotweed Annual herb  
Polygonum aviculare Prostrate knotweed Annual, Perennial herb  
Polygonum aviculare ssp. aviculare Prostrate knotweed Annual, Perennial herb  
Polygonum aviculare ssp. buxiforme Prostrate knotweed Annual, Perennial herb  
Polygonum aviculare ssp. depressum Prostrate knotweed Annual, Perennial herb  
Polygonum aviculare ssp. neglectum Prostrate knotweed Annual, Perennial herb  
Polygonum aviculare ssp. rurivagum Prostrate knotweed Annual, Perennial herb  
Polygonum baldschuanicum Bukhara fallopia Vine 1
Polygonum bidwelliae Bidwell's knotweed Annual herb  
Polygonum bistorta Meadow bistort Annual, Perennial herb  
Polygonum bistortoides Western knotweed Perennial herb  
Polygonum bolanderi Bolander's polygonum Perennial herb  
Polygonum buxiforme Box knotweed Annual, Perennial herb  
Polygonum californicum California knotweed Annual herb  
Polygonum capitatum Himalayan smartweed Perennial herb 1
Polygonum convolvulus Black bindweed Annual herb  
Polygonum cuspidatum Japanese knotweed Perennial herb 1
Polygonum davisiae Davis knotweed Perennial 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 fowleri Fowler's knotweed Annual herb  
Polygonum fowleri ssp. fowleri Fowler knotweed Annual herb  
Polygonum heterosepalum Oddsepal knotweed Annual, Perennial herb  
Polygonum hickmanii Hickman's knotweed Annual herb  
Polygonum hydropiper Common smartweed Annual herb  
Polygonum hydropiperoides Water pepper Perennial herb  
Polygonum lapathifolium Common knotweed Annual herb  
Polygonum majus Large douglas' knotweed Annual herb  
Polygonum marinense Marin knotweed Annual herb  
Polygonum minimum Little mountain knotweed Annual herb  
Polygonum multiflorum Tuber fleeceflower Vine 2
Polygonum newberryi Newberry's smartweed Perennial herb  
Polygonum orientale Kiss me over the garden gate Annual herb 1
Polygonum paronychia Dune knotweed Perennial herb 4
Polygonum parryi Parry's knotweed Annual herb  
Polygonum patulum Bellard's smartweed Annual herb  
Polygonum pensylvanicum Pinkweed Annual herb  
Polygonum persicaria Lady's thumb Annual herb  
Polygonum phytolaccifolium Pokeweed knotweed Perennial herb  
Polygonum polygaloides Milkwort knotweed Annual herb  
Polygonum polygaloides ssp. confertiflorum Dense knotweed Annual herb  
Polygonum polygaloides ssp. esotericum Modoc county knotweed Annual herb  
Polygonum polygaloides ssp. kelloggii Kellogg's knotweed Annual herb  
Polygonum polystachyum Himalayan knotweed Perennial herb  
Polygonum prolificum Bushy knotweed Annual herb  
Polygonum punctatum Punctate smartweed Perennial herb 4
Polygonum ramosissimum Yellow knotweed Annual herb  
Polygonum ramosissimum ssp. prolificum Bushy knotweed Annual herb  
Polygonum ramosissimum ssp. ramosissimum Yellow knotweed Annual herb  
Polygonum sachalinense Sacaline Perennial herb  
Polygonum sawatchense Knotweed Annual herb  
Polygonum sawatchense ssp. oblivium Knotweed Annual, Perennial herb  
Polygonum sawatchense ssp. sawatchense Annual, Perennial herb  
Polygonum shastense Shasta knotweed Perennial herb  
Polygonum spergulariiforme Spurry knotweed Annual herb  
Pterostegia drymarioides Fairy mist Annual herb  
Rumex Xacutus Perennial herb  
Rumex acetosella ! Sheep sorrel Perennial herb 1
Rumex britannica Pale dock Perennial herb 1
Rumex bucephalophorus Red dock Perennial herb  
Rumex californicus California dock Perennial herb  
Rumex conglomeratus Green dock Perennial herb  
Rumex crassus Willow leaved dock Perennial herb  
Rumex crispus ! Curly dock Perennial herb 4
Rumex dentatus Toothed dock Annual, Perennial herb  
Rumex fueginus Golden dock Annual, Perennial herb  
Rumex hymenosepalus Wild rhubarb Perennial herb  
Rumex kerneri Kerner's dock Perennial herb  
Rumex lacustris Lake dock Perennial herb (aquatic)  
Rumex maritimus Golden dock Annual, Perennial herb  
Rumex obtusifolius Broadleaf dock Perennial herb  
Rumex occidentalis Western dock Perennial herb 1
Rumex orbiculatus Greater water dock Perennial herb 1
Rumex palustris Perennial herb  
Rumex paucifolius Few leaved dock Perennial herb  
Rumex persicarioides Golden dock Annual, Perennial herb  
Rumex pulcher Fiddleleaf 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 7
Rumex salicifolius var. transitorius Willow dock Perennial herb  
Rumex salicifolius var. triangulivalvis Willow dock Perennial herb  
Rumex sanguineus Redvein dock Perennial herb 4
Rumex stenophyllus Narrowleaf dock Perennial herb  
Rumex transitorius Willow dock Perennial herb  
Rumex triangulivalvis Willow dock Perennial herb  
Rumex utahensis Toothed willow dock Perennial herb  
Rumex venosus Winged dock Perennial herb  
Rumex violascens Mexican dock Annual, Perennial herb  
Sidotheca caryophylloides Chickweed oxytheca Annual herb  
Sidotheca emarginata White margined oxytheca Annual herb  
Sidotheca trilobata Three lobed oxytheca Annual herb  
Systenotheca vortriedei Vortriede's spineflower Annual herb