List of Oregon Plants
| Plant Name | Scientific Name | Plant CD | Family | Type |
|---|---|---|---|---|
| Aaron"s beard | Hypericum calycinum | HYCA10 | Clusiaceae | Dicot |
| abruptbeak sedge | Carex abrupta | CAAB2 | Cyperaceae | Monocot |
| absinthium | Artemisia absinthium | ARAB3 | Asteraceae | Dicot |
| acacia | Acacia | ACACI | Fabaceae | Dicot |
| acaena | Acaena | ACAEN | Rosaceae | Dicot |
| achlys | Achlys | ACHLY | Berberidaceae | Dicot |
| acuminate cotoneaster | Cotoneaster acuminatus | COAC7 | Rosaceae | Dicot |
| acute Indian paintbrush | Castilleja hispida ssp. acuta | CAHIA2 | Scrophulariaceae | Dicot |
| adderstongue | Ophioglossum | OPHIO | Ophioglossaceae | Fern |
| African mustard | Malcolmia africana | MAAF | Brassicaceae | Dicot |
| agate desertparsley | Lomatium cookii | LOCO8 | Apiaceae | Dicot |
| agoseris | Agoseris | AGOSE | Asteraceae | Dicot |
| agoseris | Agoseris ×dasycarpa | AGDA3 | Asteraceae | Dicot |
| agrimony | Agrimonia | AGRIM | Rosaceae | Dicot |
| Ahart"s cluster rose | Rosa pisocarpa ssp. ahartii | ROPIA | Rosaceae | Dicot |
| ailanthus | Ailanthus | AILAN | Simaroubaceae | Dicot |
| Alaska blueberry | Vaccinium alaskaense | VAAL3 | Ericaceae | Dicot |
| Alaska brome | Bromus sitchensis | BRSI | Poaceae | Monocot |
| Alaska cedar | Callitropsis nootkatensis | CANO9 | Cupressaceae | Gymnosperm |
| Alaska curved woodrush | Luzula arcuata ssp. unalaschcensis | LUARU | Juncaceae | Monocot |
| Alaska oniongrass | Melica subulata | MESU | Poaceae | Monocot |
| Alaska oniongrass | Melica subulata var. subulata | MESUS | Poaceae | Monocot |
| Alaskan scouringrush | Equisetum variegatum var. alaskanum | EQVAA | Equisetaceae | Horsetail |
| Alaskan wheatgrass | Elymus alaskanus | ELAL5 | Poaceae | Monocot |
| Alaskan wheatgrass | Elymus alaskanus ssp. latiglumis | ELALL | Poaceae | Monocot |
| Alberta saxifrage | Saxifraga occidentalis | SAOC4 | Saxifragaceae | Dicot |
| alder | Alnus | ALNUS | Betulaceae | Dicot |
| alderleaf buckthorn | Rhamnus alnifolia | RHAL | Rhamnaceae | Dicot |
| alderleaf mountain mahogany | Cercocarpus montanus | CEMO2 | Rosaceae | Dicot |
| alderleaf mountain mahogany | Cercocarpus montanus var. montanus | CEMOM4 | Rosaceae | Dicot |
| Aleutian maidenhair | Adiantum aleuticum | ADAL | Pteridaceae | Fern |
| Aleutian violet | Viola langsdorffii | VILA6 | Violaceae | Dicot |
| alfalfa | Medicago sativa | MESA | Fabaceae | Dicot |
| alfalfa | Medicago sativa ssp. sativa | MESAS | Fabaceae | Dicot |
| alfalfa | Medicago | MEDIC | Fabaceae | Dicot |
| alfalfa dodder | Cuscuta approximata | CUAP2 | Cuscutaceae | Dicot |
| Alice Eastwood"s fleabane | Erigeron aliceae | ERAL3 | Asteraceae | Dicot |
| aliciella | Aliciella | ALICI | Polemoniaceae | Dicot |
| alkali buttercup | Ranunculus cymbalaria | RACY | Ranunculaceae | Dicot |
| alkali cordgrass | Spartina gracilis | SPGR | Poaceae | Monocot |
| alkali cusickiella | Cusickiella douglasii | CUDO3 | Brassicaceae | Dicot |
| alkali mallow | Malvella leprosa | MALE3 | Malvaceae | Dicot |
| alkali pepperweed | Lepidium dictyotum | LEDI2 | Brassicaceae | Dicot |
| alkali pepperweed | Lepidium dictyotum var. dictyotum | LEDID | Brassicaceae | Dicot |
| alkali pepperwort | Lepidium dictyotum var. acutidens | LEDIA | Brassicaceae | Dicot |
| alkali sacaton | Sporobolus airoides | SPAI | Poaceae | Monocot |
| alkali sandspurry | Spergularia diandra | SPDI | Caryophyllaceae | Dicot |
| alkali swainsonpea | Sphaerophysa salsula | SPSA3 | Fabaceae | Dicot |
| alkali wildrye | Leymus simplex | LESI5 | Poaceae | Monocot |
| alkaligrass | Puccinellia | PUCCI | Poaceae | Monocot |
| alkaliweed | Cressa | CRESS | Convolvulaceae | Dicot |
| Allegheny monkeyflower | Mimulus ringens | MIRI | Scrophulariaceae | Dicot |
| Allegheny monkeyflower | Mimulus ringens var. ringens | MIRIR | Scrophulariaceae | Dicot |
| allenrolfea | Allenrolfea | ALLEN | Chenopodiaceae | Dicot |
| alliaria | Alliaria | ALLIA | Brassicaceae | Dicot |
| alpine alumroot | Heuchera cylindrica var. alpina | HECYA | Saxifragaceae | Dicot |
| alpine bentgrass | Agrostis humilis | AGHU | Poaceae | Monocot |
| alpine bistort | Polygonum viviparum | POVI3 | Polygonaceae | Dicot |
| alpine bittercress | Cardamine bellidifolia | CABE | Brassicaceae | Dicot |
| alpine bittercress | Cardamine bellidifolia var. bellidifolia | CABEB | Brassicaceae | Dicot |
| alpine bittercress | Cardamine bellidifolia var. pachyphylla | CABEP | Brassicaceae | Dicot |
| alpine bluegrass | Poa alpina | POAL2 | Poaceae | Monocot |
| alpine collomia | Collomia debilis | CODE | Polemoniaceae | Dicot |
| alpine collomia | Collomia debilis var. debilis | CODED | Polemoniaceae | Dicot |
| alpine collomia | Collomia debilis var. trifida | CODET | Polemoniaceae | Dicot |
| alpine dustymaiden | Chaenactis douglasii var. alpina | CHDOA2 | Asteraceae | Dicot |
| alpine false candytuft | Smelowskia ovalis | SMOV | Brassicaceae | Dicot |
| alpine false candytuft | Smelowskia ovalis var. ovalis | SMOVO | Brassicaceae | Dicot |
| alpine fescue | Festuca brachyphylla | FEBR | Poaceae | Monocot |
| alpine fescue | Festuca brachyphylla ssp. brachyphylla | FEBRB | Poaceae | Monocot |
| alpine forget-me-not | Eritrichium | ERITR | Boraginaceae | Dicot |
| alpine gentian | Gentiana newberryi | GENE | Gentianaceae | Dicot |
| alpine gentian | Gentiana newberryi var. newberryi | GENEN | Gentianaceae | Dicot |
| alpine golden buckwheat | Eriogonum flavum | ERFL4 | Polygonaceae | Dicot |
| alpine heuchera | Heuchera glabra | HEGL5 | Saxifragaceae | Dicot |
| alpine knapweed | Centaurea transalpina | CETR6 | Asteraceae | Dicot |
| alpine ladyfern | Athyrium americanum | ATAM | Dryopteridaceae | Fern |
| alpine lake false dandelion | Nothocalais alpestris | NOAL2 | Asteraceae | Dicot |
| alpine laurel | Kalmia microphylla | KAMI | Ericaceae | Dicot |
| alpine leafybract aster | Symphyotrichum foliaceum | SYFO2 | Asteraceae | Dicot |
| alpine leafybract aster | Symphyotrichum foliaceum var. apricum | SYFOA | Asteraceae | Dicot |
| alpine lewisia | Lewisia pygmaea | LEPY2 | Portulacaceae | Dicot |
| alpine meadow-rue | Thalictrum alpinum | THAL | Ranunculaceae | Dicot |
| alpine milkvetch | Astragalus alpinus | ASAL7 | Fabaceae | Dicot |
| alpine milkvetch | Astragalus alpinus var. alpinus | ASALA4 | Fabaceae | Dicot |
| alpine mountainsorrel | Oxyria digyna | OXDI3 | Polygonaceae | Dicot |
| alpine nerve sedge | Carex neurophora | CANE6 | Cyperaceae | Monocot |
| alpine pennycress | Noccaea fendleri ssp. glauca | NOFEG | Brassicaceae | Dicot |
| alpine pondweed | Potamogeton alpinus | POAL8 | Potamogetonaceae | Monocot |
| alpine sheep sorrel | Rumex paucifolius | RUPA6 | Polygonaceae | Dicot |
| alpine sheep sorrel | Rumex paucifolius ssp. gracilescens | RUPAG2 | Polygonaceae | Dicot |
| alpine sheep sorrel | Rumex paucifolius ssp. paucifolius | RUPAP | Polygonaceae | Dicot |
| alpine shootingstar | Dodecatheon alpinum | DOAL | Primulaceae | Dicot |
| alpine shootingstar | Dodecatheon alpinum ssp. alpinum | DOALA | Primulaceae | Dicot |
| alpine shootingstar | Dodecatheon alpinum ssp. majus | DOALM | Primulaceae | Dicot |
| alpine smelowskia | Smelowskia calycina | SMCA | Brassicaceae | Dicot |
| alpine spicywintergreen | Gaultheria humifusa | GAHU | Ericaceae | Dicot |
| alpine springbeauty | Claytonia megarhiza | CLME | Portulacaceae | Dicot |
| alpine springbeauty | Claytonia megarhiza var. bellidifolia | CLMEB | Portulacaceae | Dicot |
| alpine timothy | Phleum alpinum | PHAL2 | Poaceae | Monocot |
| alpine waterleaf | Hydrophyllum capitatum var. alpinum | HYCAA | Hydrophyllaceae | Dicot |
| alpine willow | Salix petrophila | SAPE18 | Salicaceae | Dicot |
| alpinegold | Hulsea | HULSE | Asteraceae | Dicot |
| alplily | Lloydia | LLOYD | Liliaceae | Monocot |
| alsike clover | Trifolium hybridum | TRHY | Fabaceae | Dicot |
| alumroot | Heuchera ×cuneata | HECU8 | Saxifragaceae | Dicot |
| alumroot | Heuchera | HEUCH | Saxifragaceae | Dicot |
| Alva Day"s gilia | Navarretia sinistra ssp. sinistra | NASIS | Polemoniaceae | Dicot |
| Alva Day"s pincushionplant | Navarretia sinistra | NASI2 | Polemoniaceae | Dicot |
| Alvord milkvetch | Astragalus alvordensis | ASAL9 | Fabaceae | Dicot |
| alyssum | Alyssum simplex | ALSI8 | Brassicaceae | Dicot |
| alyssum evening primrose | Camissonia boothii ssp. alyssoides | CABOA | Onagraceae | Dicot |
| amelasorbus | ×Amelasorbus | AMELA2 | Rosaceae | Dicot |
| American alpine speedwell | Veronica wormskjoldii | VEWO2 | Scrophulariaceae | Dicot |
| American alpine speedwell | Veronica wormskjoldii var. wormskjoldii | VEWOW | Scrophulariaceae | Dicot |
| American beachgrass | Ammophila breviligulata | AMBR | Poaceae | Monocot |
| American bird"s-foot trefoil | Lotus unifoliolatus | LOUN | Fabaceae | Dicot |
| American bird"s-foot trefoil | Lotus unifoliolatus var. unifoliolatus | LOUNU | Fabaceae | Dicot |
| American bistort | Polygonum bistortoides | POBI6 | Polygonaceae | Dicot |
| American black nightshade | Solanum americanum | SOAM | Solanaceae | Dicot |
| American bugseed | Corispermum americanum | COAM8 | Chenopodiaceae | Dicot |
| American bugseed | Corispermum americanum var. americanum | COAMA2 | Chenopodiaceae | Dicot |
| American burnweed | Erechtites hieraciifolia | ERHI2 | Asteraceae | Dicot |
| American burnweed | Erechtites hieraciifolia var. hieraciifolia | ERHIH | Asteraceae | Dicot |
| American common reed | Phragmites australis ssp. americanus | PHAUA6 | Poaceae | Monocot |
| American dragonhead | Dracocephalum parviflorum | DRPA2 | Lamiaceae | Dicot |
| American dunegrass | Leymus mollis | LEMO8 | Poaceae | Monocot |
| American dunegrass | Leymus mollis ssp. mollis | LEMOM2 | Poaceae | Monocot |
| American dwarf mistletoe | Arceuthobium americanum | ARAM | Viscaceae | Dicot |
| American eelgrass | Vallisneria americana | VAAM3 | Hydrocharitaceae | Monocot |
| American false candytuft | Smelowskia calycina var. americana | SMCAA | Brassicaceae | Dicot |
| American globeflower | Trollius laxus | TRLA14 | Ranunculaceae | Dicot |
| American globeflower | Trollius laxus ssp. albiflorus | TRLAA2 | Ranunculaceae | Dicot |
| American licorice | Glycyrrhiza lepidota | GLLE3 | Fabaceae | Dicot |
| American mannagrass | Glyceria grandis | GLGR | Poaceae | Monocot |
| American mannagrass | Glyceria grandis var. grandis | GLGRG | Poaceae | Monocot |
| American pillwort | Pilularia americana | PIAM | Marsileaceae | Fern |
| American pokeweed | Phytolacca americana | PHAM4 | Phytolaccaceae | Dicot |
| American pokeweed | Phytolacca americana var. americana | PHAMA3 | Phytolaccaceae | Dicot |
| American red raspberry | Rubus idaeus | RUID | Rosaceae | Dicot |
| American rockbrake | Cryptogramma acrostichoides | CRAC3 | Pteridaceae | Fern |
| American saw-wort | Saussurea americana | SAAM3 | Asteraceae | Dicot |
| American searocket | Cakile edentula | CAED | Brassicaceae | Dicot |
| American searocket | Cakile edentula ssp. edentula | CAEDE | Brassicaceae | Dicot |
| American searocket | Cakile edentula ssp. edentula var. edentula | CAEDE2 | Brassicaceae | Dicot |
| American silvertop | Glehnia littoralis | GLLI | Apiaceae | Dicot |
| American silvertop | Glehnia littoralis ssp. leiocarpa | GLLIL | Apiaceae | Dicot |
| American skunkcabbage | Lysichiton americanus | LYAM3 | Araceae | Monocot |
| American sloughgrass | Beckmannia syzigachne | BESY | Poaceae | Monocot |
| American speedwell | Veronica americana | VEAM2 | Scrophulariaceae | Dicot |
| American thorow wax | Bupleurum americanum | BUAM2 | Apiaceae | Dicot |
| American trailplant | Adenocaulon bicolor | ADBI | Asteraceae | Dicot |
| American vetch | Vicia americana | VIAM | Fabaceae | Dicot |
| American vetch | Vicia americana ssp. americana | VIAMA3 | Fabaceae | Dicot |
| American water horehound | Lycopus americanus | LYAM | Lamiaceae | Dicot |
| American water plantain | Alisma subcordatum | ALSU | Alismataceae | Monocot |
| American waterawlwort | Subularia aquatica var. americana | SUAQA2 | Brassicaceae | Dicot |
| American white waterlily | Nymphaea odorata | NYOD | Nymphaeaceae | Dicot |
| American white waterlily | Nymphaea odorata ssp. odorata | NYODO | Nymphaeaceae | Dicot |
| American wild carrot | Daucus pusillus | DAPU3 | Apiaceae | Dicot |
| American woollyfruit sedge | Carex lasiocarpa var. americana | CALAA | Cyperaceae | Monocot |
| American yellowrocket | Barbarea orthoceras | BAOR | Brassicaceae | Dicot |
| ammi | Ammi | AMMI4 | Apiaceae | Dicot |
| Amur honeysuckle | Lonicera maackii | LOMA6 | Caprifoliaceae | Dicot |
| analogue sedge | Carex simulata | CASI2 | Cyperaceae | Monocot |
| Andean watermilfoil | Myriophyllum quitense | MYQU | Haloragaceae | Dicot |
| Anderson"s buttercup | Ranunculus andersonii | RAAN | Ranunculaceae | Dicot |
| Anderson"s buttercup | Ranunculus andersonii var. andersonii | RAANA | Ranunculaceae | Dicot |
| Anderson"s hollyfern | Polystichum andersonii | POAN2 | Dryopteridaceae | Fern |
| Anderson"s larkspur | Delphinium andersonii | DEAN | Ranunculaceae | Dicot |
| Andrew"s clintonia | Clintonia andrewsiana | CLAN2 | Liliaceae | Monocot |
| Andrews" bedstraw | Galium andrewsii ssp. andrewsii | GAANA | Rubiaceae | Dicot |
| anemone | Anemone | ANEMO | Ranunculaceae | Dicot |
| angelica | Angelica | ANGEL | Apiaceae | Dicot |
| angled pea | Lathyrus angulatus | LAAN3 | Fabaceae | Dicot |
| angleleaf miterwort | Mitella diversifolia | MIDI4 | Saxifragaceae | Dicot |
| animated oat | Avena sterilis | AVST | Poaceae | Monocot |
| anise | Myrrhis odorata | MYOD | Apiaceae | Dicot |
| annual agoseris | Agoseris heterophylla | AGHE2 | Asteraceae | Dicot |
| annual agoseris | Agoseris heterophylla var. crenulata | AGHEC | Asteraceae | Dicot |
| annual agoseris | Agoseris heterophylla var. heterophylla | AGHEH | Asteraceae | Dicot |
| annual agoseris | Agoseris heterophylla var. turgida | AGHET | Asteraceae | Dicot |
| annual bastardcabbage | Rapistrum rugosum | RARU | Brassicaceae | Dicot |
| annual bluegrass | Poa annua | POAN | Poaceae | Monocot |
| annual canarygrass | Phalaris canariensis | PHCA5 | Poaceae | Monocot |
| annual candytuft | Iberis amara | IBAM | Brassicaceae | Dicot |
| annual fescue | Vulpia myuros | VUMY | Poaceae | Monocot |
| annual hairgrass | Deschampsia danthonioides | DEDA | Poaceae | Monocot |
| annual honesty | Lunaria annua | LUAN | Brassicaceae | Dicot |
| annual mercury | Mercurialis annua | MEAN | Euphorbiaceae | Dicot |
| annual muhly | Muhlenbergia minutissima | MUMI2 | Poaceae | Monocot |
| annual pearlwort | Sagina apetala | SAAP | Caryophyllaceae | Dicot |
| annual polemonium | Polemonium micranthum | POMI | Polemoniaceae | Dicot |
| annual rabbitsfoot grass | Polypogon monspeliensis | POMO5 | Poaceae | Monocot |
| annual ragweed | Ambrosia artemisiifolia | AMAR2 | Asteraceae | Dicot |
| annual ragweed | Ambrosia artemisiifolia var. elatior | AMARE | Asteraceae | Dicot |
| annual sandwort | Minuartia pusilla | MIPU7 | Caryophyllaceae | Dicot |
| annual sandwort | Minuartia pusilla var. pusilla | MIPUP | Caryophyllaceae | Dicot |
| annual silver hairgrass | Aira elegans | AIEL4 | Poaceae | Monocot |
| annual vernalgrass | Anthoxanthum aristatum | ANAR7 | Poaceae | Monocot |
| annual wallrocket | Diplotaxis muralis | DIMU2 | Brassicaceae | Dicot |
| annual water minerslettuce | Montia fontana | MOFO | Portulacaceae | Dicot |
| annual wheatgrass | Eremopyrum triticeum | ERTR13 | Poaceae | Monocot |
| annual yellow sweetclover | Melilotus indicus | MEIN2 | Fabaceae | Dicot |
| antelope bitterbrush | Purshia tridentata | PUTR2 | Rosaceae | Dicot |
| Antelope Valley beardtongue | Penstemon janishiae | PEJA2 | Scrophulariaceae | Dicot |
| apple | Malus | MALUS | Rosaceae | Dicot |
| apple mint | Mentha suaveolens | MESU5 | Lamiaceae | Dicot |
| Applegate"s milkvetch | Astragalus applegatei | ASAP | Fabaceae | Dicot |
| apricot | Prunus armeniaca | PRAR3 | Rosaceae | Dicot |
| aptenia | Aptenia | APTEN | Aizoaceae | Dicot |
| arborvitae | Thuja | THUJA | Cupressaceae | Gymnosperm |
| arcane milkvetch | Astragalus obscurus | ASOB4 | Fabaceae | Dicot |
| arctic alpine forget-me-not | Eritrichium nanum | ERNA | Boraginaceae | Dicot |
| arctic alpine forget-me-not | Eritrichium nanum var. elongatum | ERNAE | Boraginaceae | Dicot |
| arctic bentgrass | Agrostis aequivalvis | AGAE | Poaceae | Monocot |
| arctic eyebright | Euphrasia subarctica | EUSU2 | Scrophulariaceae | Dicot |
| arctic lupine | Lupinus arcticus | LUAR2 | Fabaceae | Dicot |
| arctic pearlwort | Sagina saginoides | SASA | Caryophyllaceae | Dicot |
| arctic raspberry | Rubus arcticus | RUAR | Rosaceae | Dicot |
| arctic rattlebox | Rhinanthus minor ssp. groenlandicus | RHMIG | Scrophulariaceae | Dicot |
| arctic rush | Juncus arcticus | JUAR2 | Juncaceae | Monocot |
| arctic starflower | Trientalis europaea | TREU | Primulaceae | Dicot |
| arctic starflower | Trientalis europaea ssp. arctica | TREUA | Primulaceae | Dicot |
| arctic sweet coltsfoot | Petasites frigidus | PEFR5 | Asteraceae | Dicot |
| arctic sweet coltsfoot | Petasites frigidus var. frigidus | PEFRF | Asteraceae | Dicot |
| arctic sweet coltsfoot | Petasites frigidus var. palmatus | PEFRP | Asteraceae | Dicot |
| arctic willow | Salix arctica | SAAR27 | Salicaceae | Dicot |
| Argentine evening primrose | Oenothera mollissima | OEMO | Onagraceae | Dicot |
| aridland goosefoot | Chenopodium desiccatum | CHDE | Chenopodiaceae | Dicot |
| armeria | Armeria | ARMER | Plumbaginaceae | Dicot |
| armoracia | Armoracia | ARMOR | Brassicaceae | Dicot |
| arnica | Arnica | ARNIC | Asteraceae | Dicot |
| arrow arum | Peltandra | PELTA | Araceae | Monocot |
| arrow thelypody | Thelypodium sagittatum | THSA2 | Brassicaceae | Dicot |
| arrow thelypody | Thelypodium sagittatum ssp. sagittatum | THSAS | Brassicaceae | Dicot |
| arrow-leaf thelypody | Thelypodium eucosmum | THEU | Brassicaceae | Dicot |
| arrowgrass | Triglochin | TRIGL | Juncaginaceae | Monocot |
| arrowhead | Sagittaria | SAGIT | Alismataceae | Monocot |
| arrowleaf balsamroot | Balsamorhiza sagittata | BASA3 | Asteraceae | Dicot |
| arrowleaf buckwheat | Eriogonum compositum | ERCO12 | Polygonaceae | Dicot |
| arrowleaf buckwheat | Eriogonum compositum var. compositum | ERCOC8 | Polygonaceae | Dicot |
| arrowleaf buckwheat | Eriogonum compositum var. leianthum | ERCOL2 | Polygonaceae | Dicot |
| arrowleaf clover | Trifolium vesiculosum | TRVE | Fabaceae | Dicot |
| arrowleaf ragwort | Senecio triangularis | SETR | Asteraceae | Dicot |
| arrowleaf tearthumb | Polygonum sagittatum | POSA5 | Polygonaceae | Dicot |
| arroyo willow | Salix lasiolepis | SALA6 | Salicaceae | Dicot |
| arroyo willow | Salix lasiolepis var. lasiolepis | SALAL2 | Salicaceae | Dicot |
| arum | Arum | ARUM2 | Araceae | Monocot |
| arumleaf arrowhead | Sagittaria cuneata | SACU | Alismataceae | Monocot |
| aruncus | Aruncus | ARUNC | Rosaceae | Dicot |
| ash | Fraxinus | FRAXI | Oleaceae | Dicot |
| ash penstemon | Penstemon cinicola | PECI2 | Scrophulariaceae | Dicot |
| Ashland cinquefoil | Potentilla glandulosa ssp. ashlandica | POGLA2 | Rosaceae | Dicot |
| Ashland thistle | Cirsium ciliolatum | CICI | Asteraceae | Dicot |
| Ashland"s lupine | Lupinus aridus ssp. ashlandensis | LUARA | Fabaceae | Dicot |
| Asian forget-me-not | Myosotis asiatica | MYAS2 | Boraginaceae | Dicot |
| Asian netvein hollyfern | Cyrtomium fortunei | CYFO | Dryopteridaceae | Fern |
| Asiatic dayflower | Commelina communis | COCO3 | Commelinaceae | Monocot |
| Asiatic tearthumb | Polygonum perfoliatum | POPE10 | Polygonaceae | Dicot |
| asparagus | Asparagus | ASPAR | Liliaceae | Monocot |
| aspen fleabane | Erigeron speciosus | ERSP4 | Asteraceae | Dicot |
| aspen fleabane | Erigeron speciosus var. macranthus | ERSPM | Asteraceae | Dicot |
| aspen fleabane | Erigeron speciosus var. speciosus | ERSPS | Asteraceae | Dicot |
| asphodel | Narthecium | NARTH | Liliaceae | Monocot |
| aster | Oreostemma | OREOS | Asteraceae | Dicot |
| aster | Eurybia | EURYB | Asteraceae | Dicot |
| aster | Eucephalus | EUCEP2 | Asteraceae | Dicot |
| aster | Ionactis | IONAC | Asteraceae | Dicot |
| aster | Symphyotrichum ×columbianum | SYCO2 | Asteraceae | Dicot |
| aster | Symphyotrichum | SYMPH4 | Asteraceae | Dicot |
| asthmaweed | Conyza bonariensis | COBO | Asteraceae | Dicot |
| Atkinson"s tickseed | Coreopsis tinctoria var. atkinsoniana | COTIA | Asteraceae | Dicot |
| Atlantic Ivy | Hedera hibernica | HEHI12 | Araliaceae | Dicot |
| attenuate Indian paintbrush | Castilleja attenuata | CAAT25 | Scrophulariaceae | Dicot |
| Austin knotweed | Polygonum douglasii ssp. austiniae | PODOA2 | Polygonaceae | Dicot |
| Austin"s popcornflower | Plagiobothrys austiniae | PLAU | Boraginaceae | Dicot |
| Australian brome | Bromus arenarius | BRAR3 | Poaceae | Monocot |
| Australian waterbuttons | Cotula australis | COAU3 | Asteraceae | Dicot |
| autumn crocus | Colchicum autumnale | COAU4 | Liliaceae | Monocot |
| autumn dwarf gentian | Gentianella amarella | GEAM3 | Gentianaceae | Dicot |
| autumn dwarf gentian | Gentianella amarella ssp. acuta | GEAMA | Gentianaceae | Dicot |
| autumn olive | Elaeagnus umbellata | ELUM | Elaeagnaceae | Dicot |
| autumn olive | Elaeagnus umbellata var. parvifolia | ELUMP | Elaeagnaceae | Dicot |
| avens | Geum | GEUM | Rosaceae | Dicot |
| awl-leaf lilaea | Lilaea scilloides | LISC4 | Juncaginaceae | Monocot |
| awl-leaf pearlwort | Sagina subulata | SASU5 | Caryophyllaceae | Dicot |
| awl-leaf pincushionplant | Navarretia subuligera | NASU | Polemoniaceae | Dicot |
| awlfruit sedge | Carex stipata | CAST5 | Cyperaceae | Monocot |
| awlwort | Subularia | SUBUL | Brassicaceae | Dicot |
| awned halfchaff sedge | Lipocarpha aristulata | LIAR6 | Cyperaceae | Monocot |
| Aztec tobacco | Nicotiana rustica | NIRU | Solanaceae | Dicot |
| azure penstemon | Penstemon azureus | PEAZ | Scrophulariaceae | Dicot |
| azure penstemon | Penstemon azureus ssp. azureus | PEAZA2 | Scrophulariaceae | Dicot |
| baby blue eyes | Nemophila | NEMOP | Hydrophyllaceae | Dicot |
| baby blue eyes | Nemophila menziesii | NEME | Hydrophyllaceae | Dicot |
| baby blue eyes | Nemophila menziesii var. atomaria | NEMEA | Hydrophyllaceae | Dicot |
| baby"s breath | Gypsophila paniculata | GYPA | Caryophyllaceae | Dicot |
| baby"s-breath | Gypsophila | GYPSO | Caryophyllaceae | Dicot |
| baccharis | Baccharis | BACCH | Asteraceae | Dicot |
| Bach"s calicoflower | Downingia bacigalupii | DOBA | Campanulaceae | Dicot |
| Back"s sedge | Carex backii | CABA3 | Cyperaceae | Monocot |
| Bailey"s buckwheat | Eriogonum baileyi | ERBA7 | Polygonaceae | Dicot |
| Bailey"s buckwheat | Eriogonum baileyi var. baileyi | ERBAB | Polygonaceae | Dicot |
| Bailey"s ivesia | Ivesia baileyi | IVBA | Rosaceae | Dicot |
| Bailey"s ivesia | Ivesia baileyi var. beneolens | IVBAB2 | Rosaceae | Dicot |
| Baker"s hawksbeard | Crepis bakeri | CRBA2 | Asteraceae | Dicot |
| Baker"s hawksbeard | Crepis bakeri ssp. bakeri | CRBAB | Asteraceae | Dicot |
| Baker"s violet | Viola bakeri | VIBA2 | Violaceae | Dicot |
| Baker"s wheatgrass | Elymus bakeri | ELBA3 | Poaceae | Monocot |
| Baker"s wild hollyhock | Iliamna bakeri | ILBA | Malvaceae | Dicot |
| bald brome | Bromus racemosus | BRRA2 | Poaceae | Monocot |
| Bald Mountain milkvetch | Astragalus umbraticus | ASUM3 | Fabaceae | Dicot |
| Balfour"s touch-me-not | Impatiens balfourii | IMBA2 | Balsaminaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta | IPCO5 | Polemoniaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta ssp. congesta | IPCOC3 | Polemoniaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta ssp. montana | IPCOM | Polemoniaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta ssp. palmifrons | IPCOP | Polemoniaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta ssp. viridis | IPCOV | Polemoniaceae | Dicot |
| ballhead ragwort | Senecio sphaerocephalus | SESP4 | Asteraceae | Dicot |
| ballhead sandwort | Arenaria congesta | ARCO5 | Caryophyllaceae | Dicot |
| ballhead sandwort | Arenaria congesta var. congesta | ARCOC4 | Caryophyllaceae | Dicot |
| ballhead sandwort | Arenaria congesta var. crassula | ARCOC3 | Caryophyllaceae | Dicot |
| ballhead sandwort | Arenaria congesta var. prolifera | ARCOP | Caryophyllaceae | Dicot |
| ballhead waterleaf | Hydrophyllum capitatum var. capitatum | HYCAC | Hydrophyllaceae | Dicot |
| ballhead waterleaf | Hydrophyllum capitatum | HYCA4 | Hydrophyllaceae | Dicot |
| ballmustard | Neslia paniculata | NEPA3 | Brassicaceae | Dicot |
| balloonpod milkvetch | Astragalus whitneyi | ASWH | Fabaceae | Dicot |
| balloonpod milkvetch | Astragalus whitneyi var. sonneanus | ASWHS2 | Fabaceae | Dicot |
| balm | Melissa | MELIS | Lamiaceae | Dicot |
| balsam bird"s-foot trefoil | Lotus stipularis | LOST3 | Fabaceae | Dicot |
| balsam bird"s-foot trefoil | Lotus stipularis var. stipularis | LOSTS | Fabaceae | Dicot |
| balsam poplar | Populus balsamifera | POBA2 | Salicaceae | Dicot |
| balsam poplar | Populus balsamifera ssp. balsamifera | POBAB2 | Salicaceae | Dicot |
| balsamroot | Balsamorhiza | BALSA | Asteraceae | Dicot |
| balsamroot | Balsamorhiza ×terebinthacea | BATE3 | Asteraceae | Dicot |
| balsamroot | Balsamorhiza ×tomentosa | BATO2 | Asteraceae | Dicot |
| bamboo | Phyllostachys | PHYLL6 | Poaceae | Monocot |
| baneberry | Actaea | ACTAE | Ranunculaceae | Dicot |
| Banff bluegrass | Poa laxa ssp. banffiana | POLAB | Poaceae | Monocot |
| barbed goatgrass | Aegilops triuncialis | AETR | Poaceae | Monocot |
| barberry | Berberis | BERBE | Berberidaceae | Dicot |
| barberry | Mahonia | MAHON | Berberidaceae | Dicot |
| barbgrass | Hainardia | HAINA | Poaceae | Monocot |
| barbgrass | Hainardia cylindrica | HACY | Poaceae | Monocot |
| barbwire Russian thistle | Salsola paulsenii | SAPA8 | Chenopodiaceae | Dicot |
| barestem biscuitroot | Lomatium nudicaule | LONU2 | Apiaceae | Dicot |
| barestem teesdalia | Teesdalia nudicaulis | TENU | Brassicaceae | Dicot |
| baretwig neststraw | Stylocline psilocarphoides | STPS | Asteraceae | Dicot |
| barley | Hordeum | HORDE | Poaceae | Monocot |
| barley | ×Elyhordeum | ELYHO | Poaceae | Monocot |
| barnyardgrass | Echinochloa crus-galli | ECCR | Poaceae | Monocot |
| barren milkvetch | Astragalus cusickii var. sterilis | ASCUS2 | Fabaceae | Dicot |
| Barren Valley collomia | Collomia renacta | CORE10 | Polemoniaceae | Dicot |
| Barrett"s beardtongue | Penstemon barrettiae | PEBA7 | Scrophulariaceae | Dicot |
| Barton"s raspberry | Rubus bartonianus | RUBA | Rosaceae | Dicot |
| basalt larkspur | Delphinium basalticum | DEBA9 | Ranunculaceae | Dicot |
| basalt milkvetch | Astragalus filipes | ASFI | Fabaceae | Dicot |
| basin big sagebrush | Artemisia tridentata ssp. tridentata | ARTRT | Asteraceae | Dicot |
| basin cryptantha | Cryptantha ambigua | CRAM3 | Boraginaceae | Dicot |
| basin nemophila | Nemophila breviflora | NEBR | Hydrophyllaceae | Dicot |
| basin wildrye | Leymus cinereus | LECI4 | Poaceae | Monocot |
| basswood | Tilia | TILIA | Tiliaceae | Dicot |
| bastard milkvetch | Astragalus tegetarioides | ASTE4 | Fabaceae | Dicot |
| bastard toadflax | Comandra | COMAN | Santalaceae | Dicot |
| bastard toadflax | Comandra umbellata | COUM | Santalaceae | Dicot |
| bastardcabbage | Rapistrum | RAPIS | Brassicaceae | Dicot |
| bay forget-me-not | Myosotis laxa | MYLA | Boraginaceae | Dicot |
| bayberry | Morella | MOREL2 | Myricaceae | Dicot |
| beach knotweed | Polygonum paronychia | POPA7 | Polygonaceae | Dicot |
| beach pea | Lathyrus japonicus | LAJA | Fabaceae | Dicot |
| beach pea | Lathyrus japonicus var. maritimus | LAJAM | Fabaceae | Dicot |
| beach pine | Pinus contorta var. contorta | PICOC | Pinaceae | Gymnosperm |
| beach saltbush | Atriplex leucophylla | ATLE2 | Chenopodiaceae | Dicot |
| beach strawberry | Fragaria chiloensis | FRCH | Rosaceae | Dicot |
| beach strawberry | Fragaria chiloensis ssp. lucida | FRCHL | Rosaceae | Dicot |
| beach suncup | Camissonia cheiranthifolia | CACH13 | Onagraceae | Dicot |
| beach suncup | Camissonia cheiranthifolia ssp. cheiranthifolia | CACHC | Onagraceae | Dicot |
| beach wormwood | Artemisia pycnocephala | ARPY3 | Asteraceae | Dicot |
| beachgrass | Ammophila | AMMOP | Poaceae | Monocot |
| beaked hawksbeard | Crepis vesicaria | CRVE3 | Asteraceae | Dicot |
| beaked hawksbeard | Crepis vesicaria ssp. taraxacifolia | CRVET | Asteraceae | Dicot |
| beaked hazelnut | Corylus cornuta | COCO6 | Betulaceae | Dicot |
| beaked spikerush | Eleocharis rostellata | ELRO2 | Cyperaceae | Monocot |
| beaksedge | Rhynchospora | RHYNC3 | Cyperaceae | Monocot |
| bearbrush | Garrya fremontii | GAFR | Garryaceae | Dicot |
| beard lichen | Usnea | USNEA2 | Parmeliaceae | Lichen |
| bearded clover | Trifolium barbigerum | TRBA | Fabaceae | Dicot |
| bearded clover | Trifolium barbigerum var. barbigerum | TRBAB | Fabaceae | Dicot |
| bearded fescue | Festuca subulata | FESU | Poaceae | Monocot |
| bearded flatsedge | Cyperus squarrosus | CYSQ | Cyperaceae | Monocot |
| bearded melicgrass | Melica aristata | MEAR3 | Poaceae | Monocot |
| bearded sprangletop | Leptochloa fusca ssp. fascicularis | LEFUF | Poaceae | Monocot |
| bearded wheatgrass | Elymus caninus | ELCA11 | Poaceae | Monocot |
| beardless rabbitsfoot grass | Polypogon viridis | POVI9 | Poaceae | Monocot |
| beardless wheatgrass | Pseudoroegneria spicata ssp. inermis | PSSPI | Poaceae | Monocot |
| beardless wildrye | Leymus triticoides | LETR5 | Poaceae | Monocot |
| beardtongue | Penstemon | PENST | Scrophulariaceae | Dicot |
| beargrass | Xerophyllum | XEROP | Liliaceae | Monocot |
| beautiful alumroot | Heuchera cylindrica var. glabella | HECYG | Saxifragaceae | Dicot |
| beautiful bluebells | Mertensia bella | MEBE | Boraginaceae | Dicot |
| beautiful cinquefoil | Potentilla pulcherrima | POPU9 | Rosaceae | Dicot |
| beautiful sandwort | Minuartia rubella | MIRU3 | Caryophyllaceae | Dicot |
| beautiful spikerush | Eleocharis bella | ELBE | Cyperaceae | Monocot |
| beaver povertyweed | Monolepis spathulata | MOSP | Chenopodiaceae | Dicot |
| Bebb willow | Salix bebbiana | SABE2 | Salicaceae | Dicot |
| Bebb"s sedge | Carex bebbii | CABE2 | Cyperaceae | Monocot |
| Beck"s water-marigold | Bidens beckii | BIBE2 | Asteraceae | Dicot |
| Beckwith"s clover | Trifolium beckwithii | TRBE2 | Fabaceae | Dicot |
| Beckwith"s milkvetch | Astragalus beckwithii | ASBE3 | Fabaceae | Dicot |
| Beckwith"s violet | Viola beckwithii | VIBE2 | Violaceae | Dicot |
| Beckwith"s violet | Viola beckwithii ssp. beckwithii | VIBEB | Violaceae | Dicot |
| bedstraw | Cruciata | CRUCI2 | Rubiaceae | Dicot |
| bedstraw | Galium | GALIU | Rubiaceae | Dicot |
| beebalm | Monarda | MONAR | Lamiaceae | Dicot |
| beeblossom | Gaura | GAURA | Onagraceae | Dicot |
| beechfern | Phegopteris | PHEGO | Thelypteridaceae | Fern |
| beet | Beta | BETA | Chenopodiaceae | Dicot |
| beethistle | Eryngium articulatum | ERAR14 | Apiaceae | Dicot |
| beggarticks | Bidens | BIDEN | Asteraceae | Dicot |
| belladonna | Atropa | ATROP | Solanaceae | Dicot |
| belladonna | Atropa bella-donna | ATBE | Solanaceae | Dicot |
| Bellardi bog sedge | Kobresia myosuroides | KOMY | Cyperaceae | Monocot |
| bellflower | Campanula | CAMPA | Campanulaceae | Dicot |
| bellis | Bellis | BELLI | Asteraceae | Dicot |
| bensoniella | Bensoniella | BENSO | Saxifragaceae | Dicot |
| bent milkvetch | Astragalus inflexus | ASIN5 | Fabaceae | Dicot |
| bentgrass | Agrostis | AGROS2 | Poaceae | Monocot |
| bentgrass | Agrostis castellana | AGCA11 | Poaceae | Monocot |
| bentonite desertparsley | Lomatium bentonitum | LOBE4 | Apiaceae | Dicot |
| bergia | Bergia | BERGI | Elatinaceae | Dicot |
| Bering chickweed | Cerastium beeringianum | CEBE2 | Caryophyllaceae | Dicot |
| Bering chickweed | Cerastium beeringianum ssp. earlei | CEBEE | Caryophyllaceae | Dicot |
| Bering"s tufted hairgrass | Deschampsia beringensis | DEBE2 | Poaceae | Monocot |
| berkheya | Berkheya | BERKH | Asteraceae | Dicot |
| Bermudagrass | Cynodon | CYNOD | Poaceae | Monocot |
| Bermudagrass | Cynodon dactylon | CYDA | Poaceae | Monocot |
| Berry"s penstemon | Penstemon newberryi ssp. berryi | PENEB | Scrophulariaceae | Dicot |
| biannual lettuce | Lactuca ludoviciana | LALU | Asteraceae | Dicot |
| Bicknell"s cranesbill | Geranium bicknellii | GEBI2 | Geraniaceae | Dicot |
| biddy-biddy | Acaena novae-zelandiae | ACNO7 | Rosaceae | Dicot |
| biennial cinquefoil | Potentilla biennis | POBI7 | Rosaceae | Dicot |
| biennial wormwood | Artemisia biennis | ARBI2 | Asteraceae | Dicot |
| biennial wormwood | Artemisia biennis var. biennis | ARBIB | Asteraceae | Dicot |
| big chickweed | Cerastium fontanum ssp. vulgare | CEFOV2 | Caryophyllaceae | Dicot |
| big deervetch | Lotus crassifolius | LOCR | Fabaceae | Dicot |
| big deervetch | Lotus crassifolius var. crassifolius | LOCRC | Fabaceae | Dicot |
| big devils beggartick | Bidens vulgata | BIVU | Asteraceae | Dicot |
| big quakinggrass | Briza maxima | BRMA | Poaceae | Monocot |
| big sagebrush | Artemisia tridentata | ARTR2 | Asteraceae | Dicot |
| big squirreltail | Elymus multisetus | ELMU3 | Poaceae | Monocot |
| big trefoil | Lotus pedunculatus | LOPE80 | Fabaceae | Dicot |
| big western bittercress | Cardamine occidentalis | CAOC | Brassicaceae | Dicot |
| bigbract verbena | Verbena bracteata | VEBR | Verbenaceae | Dicot |
| Bigelow"s sneezeweed | Helenium bigelovii | HEBI | Asteraceae | Dicot |
| Bigelow"s tobacco | Nicotiana quadrivalvis var. bigelovii | NIQUB | Solanaceae | Dicot |
| Bigelow"s willow | Salix lasiolepis var. bigelovii | SALAB | Salicaceae | Dicot |
| bigflower agoseris | Agoseris grandiflora | AGGR | Asteraceae | Dicot |
| bigflower cinquefoil | Potentilla fissa | POFI3 | Rosaceae | Dicot |
| bigflower tellima | Tellima grandiflora | TEGR2 | Saxifragaceae | Dicot |
| bighead dustymaiden | Chaenactis macrantha | CHMA | Asteraceae | Dicot |
| bighead horkelia | Horkelia fusca ssp. capitata | HOFUC2 | Rosaceae | Dicot |
| bighead knapweed | Centaurea macrocephala | CEMA9 | Asteraceae | Dicot |
| bigleaf clover | Trifolium plumosum ssp. amplifolium | TRPLA | Fabaceae | Dicot |
| bigleaf lupine | Lupinus polyphyllus | LUPO2 | Fabaceae | Dicot |
| bigleaf lupine | Lupinus polyphyllus ssp. bernardinus | LUPOB | Fabaceae | Dicot |
| bigleaf lupine | Lupinus polyphyllus ssp. polyphyllus | LUPOP2 | Fabaceae | Dicot |
| bigleaf lupine | Lupinus polyphyllus ssp. polyphyllus var. pallidipes | LUPOP3 | Fabaceae | Dicot |
| bigleaf lupine | Lupinus polyphyllus ssp. polyphyllus var. polyphyllus | LUPOP4 | Fabaceae | Dicot |
| bigleaf lupine | Lupinus polyphyllus ssp. superbus | LUPOS | Fabaceae | Dicot |
| bigleaf maple | Acer macrophyllum | ACMA3 | Aceraceae | Dicot |
| bigleaf periwinkle | Vinca major | VIMA | Apocynaceae | Dicot |
| bigleaf sedge | Carex amplifolia | CAAM10 | Cyperaceae | Monocot |
| bigseed alfalfa dodder | Cuscuta indecora | CUIN | Cuscutaceae | Dicot |
| bigseed biscuitroot | Lomatium macrocarpum | LOMA3 | Apiaceae | Dicot |
| bigseed dodder | Cuscuta indecora var. neuropetala | CUINN | Cuscutaceae | Dicot |
| billion-dollar grass | Echinochloa frumentacea | ECFR | Poaceae | Monocot |
| bindweed | Convolvulus | CONVO | Convolvulaceae | Dicot |
| Bingen lupine | Lupinus bingenensis | LUBI3 | Fabaceae | Dicot |
| Bingen lupine | Lupinus bingenensis var. bingenensis | LUBIB2 | Fabaceae | Dicot |
| Bingen lupine | Lupinus bingenensis var. dubius | LUBID | Fabaceae | Dicot |
| Bingen lupine | Lupinus bingenensis var. subsaccatus | LUBIS | Fabaceae | Dicot |
| birch | Betula | BETUL | Betulaceae | Dicot |
| birch | Betula ×sargentii | BESA3 | Betulaceae | Dicot |
| birch | Betula ×utahensis | BEUT | Betulaceae | Dicot |
| birchleaf mountain mahogany | Cercocarpus montanus var. glaber | CEMOG | Rosaceae | Dicot |
| bird vetch | Vicia cracca | VICR | Fabaceae | Dicot |
| bird vetch | Vicia cracca ssp. cracca | VICRC | Fabaceae | Dicot |
| bird"s-beak | Cordylanthus | CORDY | Scrophulariaceae | Dicot |
| bird"s-foot | Ornithopus | ORNIT2 | Fabaceae | Dicot |
| bird"s-foot trefoil | Lotus corniculatus | LOCO6 | Fabaceae | Dicot |
| bird"s-foot trefoil | Lotus corniculatus var. corniculatus | LOCOC5 | Fabaceae | Dicot |
| birdcage evening primrose | Oenothera deltoides | OEDE2 | Onagraceae | Dicot |
| birdeye pearlwort | Sagina procumbens | SAPR | Caryophyllaceae | Dicot |
| birdeye speedwell | Veronica persica | VEPE3 | Scrophulariaceae | Dicot |
| birdfoot cliffbrake | Pellaea mucronata | PEMU | Pteridaceae | Fern |
| birdfoot cliffbrake | Pellaea mucronata ssp. mucronata | PEMUM | Pteridaceae | Fern |
| birdnest buckwheat | Eriogonum nidularium | ERNI4 | Polygonaceae | Dicot |
| biscuitroot | Lomatium roseanum | LORO7 | Apiaceae | Dicot |
| bishop"s goutweed | Aegopodium podagraria | AEPO | Apiaceae | Dicot |
| bitter cherry | Prunus emarginata | PREM | Rosaceae | Dicot |
| bitter cherry | Prunus emarginata var. emarginata | PREME | Rosaceae | Dicot |
| bitter cherry | Prunus emarginata var. mollis | PREMM | Rosaceae | Dicot |
| bitter dock | Rumex obtusifolius | RUOB | Polygonaceae | Dicot |
| bitter fleabane | Erigeron acris | ERAC2 | Asteraceae | Dicot |
| bitter fleabane | Erigeron acris ssp. debilis | ERACD2 | Asteraceae | Dicot |
| bitter root | Lewisia rediviva | LERE7 | Portulacaceae | Dicot |
| bitter root | Lewisia rediviva var. rediviva | LERER | Portulacaceae | Dicot |
| bitterbrush | Purshia | PURSH | Rosaceae | Dicot |
| bittercress | Cardamine | CARDA | Brassicaceae | Dicot |
| bitterroot buckwheat | Eriogonum chrysops | ERCH6 | Polygonaceae | Dicot |
| black alpine sedge | Carex nigricans | CANI2 | Cyperaceae | Monocot |
| black bindweed | Polygonum convolvulus | POCO10 | Polygonaceae | Dicot |
| black bindweed | Polygonum convolvulus var. convolvulus | POCOC2 | Polygonaceae | Dicot |
| black bristlegrass | Setaria nigrirostris | SENI2 | Poaceae | Monocot |
| black chokecherry | Prunus virginiana var. melanocarpa | PRVIM | Rosaceae | Dicot |
| black cottonwood | Populus balsamifera ssp. trichocarpa | POBAT | Salicaceae | Dicot |
| black crowberry | Empetrum nigrum | EMNI | Empetraceae | Dicot |
| black crowberry | Empetrum nigrum ssp. hermaphroditum | EMNIH | Empetraceae | Dicot |
| black crowberry | Empetrum nigrum ssp. nigrum | EMNIN | Empetraceae | Dicot |
| black elderberry | Sambucus nigra | SANI4 | Caprifoliaceae | Dicot |
| black garlic | Allium nigrum | ALNI | Liliaceae | Monocot |
| black hawthorn | Crataegus douglasii | CRDO2 | Rosaceae | Dicot |
| black henbane | Hyoscyamus niger | HYNI | Solanaceae | Dicot |
| black horehound | Ballota nigra | BANI | Lamiaceae | Dicot |
| black horehound | Ballota nigra var. nigra | BANIN | Lamiaceae | Dicot |
| black locust | Robinia pseudoacacia | ROPS | Fabaceae | Dicot |
| black medick | Medicago lupulina | MELU | Fabaceae | Dicot |
| black mustard | Brassica nigra | BRNI | Brassicaceae | Dicot |
| black nightshade | Solanum nigrum | SONI | Solanaceae | Dicot |
| black sagebrush | Artemisia nova | ARNO4 | Asteraceae | Dicot |
| black sedge | Carex nova | CANO3 | Cyperaceae | Monocot |
| black vetch | Vicia nigricans | VINI81 | Fabaceae | Dicot |
| blackberry | Rubus | RUBUS | Rosaceae | Dicot |
| blackeyed Susan | Rudbeckia hirta | RUHI2 | Asteraceae | Dicot |
| blackeyed Susan | Rudbeckia hirta var. pulcherrima | RUHIP | Asteraceae | Dicot |
| blackfoot groundsmoke | Gayophytum racemosum | GARA | Onagraceae | Dicot |
| Blackfoot River evening primrose | Camissonia andina | CAAN14 | Onagraceae | Dicot |
| blackspot hornpoppy | Glaucium corniculatum | GLCO3 | Papaveraceae | Dicot |
| blackthorn | Prunus spinosa | PRSP | Rosaceae | Dicot |
| bladder campion | Silene latifolia | SILA21 | Caryophyllaceae | Dicot |
| bladder campion | Silene latifolia ssp. alba | SILAA3 | Caryophyllaceae | Dicot |
| bladderfern | Cystopteris | CYSTO | Dryopteridaceae | Fern |
| bladderpod | Lesquerella | LESQU | Brassicaceae | Dicot |
| bladderwort | Utricularia | UTRIC | Lentibulariaceae | Dicot |
| blanketflower | Gaillardia | GAILL | Asteraceae | Dicot |
| blanketflower | Gaillardia aristata | GAAR | Asteraceae | Dicot |
| blazingstar | Mentzelia | MENTZ | Loasaceae | Dicot |
| bleeding heart | Dicentra | DICEN | Fumariaceae | Dicot |
| blepharipappus | Blepharipappus | BLEPH2 | Asteraceae | Dicot |
| blessed milkthistle | Silybum marianum | SIMA3 | Asteraceae | Dicot |
| blessed thistle | Cnicus benedictus | CNBE | Asteraceae | Dicot |
| blindeyes | Papaver dubium | PADU | Papaveraceae | Dicot |
| blister sedge | Carex vesicaria | CAVE6 | Cyperaceae | Monocot |
| blite goosefoot | Chenopodium capitatum | CHCA4 | Chenopodiaceae | Dicot |
| blood currant | Ribes sanguineum var. glutinosum | RISAG | Grossulariaceae | Dicot |
| Bloomer"s aster | Symphyotrichum campestre var. bloomeri | SYCAB | Asteraceae | Dicot |
| Bloomer"s buttercup | Ranunculus orthorhynchus var. bloomeri | RAORB | Ranunculaceae | Dicot |
| blow wives | Achyrachaena | ACHYR | Asteraceae | Dicot |
| blow wives | Achyrachaena mollis | ACMO2 | Asteraceae | Dicot |
| blue dwarf fleabane | Erigeron elegantulus | EREL4 | Asteraceae | Dicot |
| blue elderberry | Sambucus nigra ssp. cerulea | SANIC5 | Caprifoliaceae | Dicot |
| blue eyed Mary | Collinsia | COLLI | Scrophulariaceae | Dicot |
| blue fieldmadder | Sherardia arvensis | SHAR2 | Rubiaceae | Dicot |
| blue flax | Linum perenne | LIPE2 | Linaceae | Dicot |
| blue lettuce | Lactuca tatarica | LATA | Asteraceae | Dicot |
| blue lettuce | Lactuca tatarica var. pulchella | LATAP | Asteraceae | Dicot |
| Blue Mountain beardtongue | Penstemon pennellianus | PEPE11 | Scrophulariaceae | Dicot |
| Blue Mountain biscuitroot | Lomatium oreganum | LOOR3 | Apiaceae | Dicot |
| Blue Mountain buckwheat | Eriogonum strictum | ERST4 | Polygonaceae | Dicot |
| Blue Mountain buckwheat | Eriogonum strictum ssp. proliferum | ERSTP | Polygonaceae | Dicot |
| Blue Mountain buckwheat | Eriogonum strictum ssp. proliferum var. anserinum | ERSTA3 | Polygonaceae | Dicot |
| Blue Mountain buckwheat | Eriogonum strictum ssp. proliferum var. proliferum | ERSTP3 | Polygonaceae | Dicot |
| Blue Mountain buckwheat | Eriogonum strictum ssp. strictum | ERSTS3 | Polygonaceae | Dicot |
| Blue Mountain buttercup | Ranunculus oresterus | RAOR2 | Ranunculaceae | Dicot |
| Blue Mountain catchfly | Silene scaposa var. scaposa | SISCS | Caryophyllaceae | Dicot |
| Blue Mountain catchfly | Silene scaposa | SISC | Caryophyllaceae | Dicot |
| Blue Mountain milkvetch | Astragalus reventus | ASRE5 | Fabaceae | Dicot |
| Blue Mountain onion | Allium dictuon | ALDI3 | Liliaceae | Monocot |
| Blue Mountain prairie clover | Dalea ornata | DAOR2 | Fabaceae | Dicot |
| blue nodding locoweed | Oxytropis deflexa var. sericea | OXDES | Fabaceae | Dicot |
| blue skullcap | Scutellaria lateriflora | SCLA2 | Lamiaceae | Dicot |
| blue skullcap | Scutellaria lateriflora var. lateriflora | SCLAL2 | Lamiaceae | Dicot |
| blue wildrye | Elymus glaucus | ELGL | Poaceae | Monocot |
| blue wildrye | Elymus glaucus ssp. glaucus | ELGLG | Poaceae | Monocot |
| blue wildrye | Elymus glaucus ssp. virescens | ELGLV | Poaceae | Monocot |
| blue windflower | Anemone oregana | ANOR | Ranunculaceae | Dicot |
| blue windflower | Anemone oregana var. oregana | ANORO | Ranunculaceae | Dicot |
| blue-eyed grass | Sisyrinchium | SISYR | Iridaceae | Monocot |
| bluebead | Clintonia | CLINT | Liliaceae | Monocot |
| bluebell bellflower | Campanula rotundifolia | CARO2 | Campanulaceae | Dicot |
| bluebells | Mertensia | MERTE | Boraginaceae | Dicot |
| blueberry | Vaccinium | VACCI | Ericaceae | Dicot |
| blueblossom | Ceanothus thyrsiflorus | CETH | Rhamnaceae | Dicot |
| bluebunch wheatgrass | Pseudoroegneria spicata ssp. spicata | PSSPS | Poaceae | Monocot |
| bluebunch wheatgrass | Pseudoroegneria spicata | PSSP6 | Poaceae | Monocot |
| bluecup | Githopsis | GITHO | Campanulaceae | Dicot |
| bluecurls | Trichostema | TRICH9 | Lamiaceae | Dicot |
| bluedicks | Dichelostemma capitatum | DICA14 | Liliaceae | Monocot |
| bluedicks | Dichelostemma capitatum ssp. capitatum | DICAC5 | Liliaceae | Monocot |
| bluefly honeysuckle | Lonicera caerulea var. cauriana | LOCAC3 | Caprifoliaceae | Dicot |
| bluegrass | Poa | POA | Poaceae | Monocot |
| bluehead gilia | Gilia capitata | GICA5 | Polemoniaceae | Dicot |
| bluehead gilia | Gilia capitata ssp. capitata | GICAC3 | Polemoniaceae | Dicot |
| bluejoint | Calamagrostis canadensis | CACA4 | Poaceae | Monocot |
| bluejoint | Calamagrostis canadensis var. canadensis | CACAC10 | Poaceae | Monocot |
| bluejoint | Calamagrostis canadensis var. langsdorffii | CACAL3 | Poaceae | Monocot |
| blueleaf beardtongue | Penstemon glaucinus | PEGL10 | Scrophulariaceae | Dicot |
| bluewitch nightshade | Solanum umbelliferum | SOUM | Solanaceae | Dicot |
| bluewitch nightshade | Solanum umbelliferum var. umbelliferum | SOUMU | Solanaceae | Dicot |
| blunt broom sedge | Carex tribuloides | CATR7 | Cyperaceae | Monocot |
| blunt broom sedge | Carex tribuloides var. tribuloides | CATRT2 | Cyperaceae | Monocot |
| blunt spikerush | Eleocharis obtusa | ELOB2 | Cyperaceae | Monocot |
| bluntleaf sandwort | Moehringia lateriflora | MOLA6 | Caryophyllaceae | Dicot |
| bluntleaf yellowcress | Rorippa curvipes | ROCU2 | Brassicaceae | Dicot |
| bluntleaf yellowcress | Rorippa curvipes var. curvipes | ROCUC | Brassicaceae | Dicot |
| bluntleaf yellowcress | Rorippa curvipes var. truncata | ROCUT | Brassicaceae | Dicot |
| bluntleaved orchid | Platanthera obtusata | PLOB | Orchidaceae | Monocot |
| bluntleaved orchid | Platanthera obtusata ssp. obtusata | PLOBO3 | Orchidaceae | Monocot |
| bluntseed sweetroot | Osmorhiza depauperata | OSDE | Apiaceae | Dicot |
| Boccone"s sandspurry | Spergularia bocconii | SPBO | Caryophyllaceae | Dicot |
| bog anemone | Anemone oregana var. felix | ANORF | Ranunculaceae | Dicot |
| bog birch | Betula pumila | BEPU4 | Betulaceae | Dicot |
| bog birch | Betula pumila var. glandulifera | BEPUG | Betulaceae | Dicot |
| bog blueberry | Vaccinium uliginosum | VAUL | Ericaceae | Dicot |
| bog bulrush | Schoenoplectiella mucronata | SCMU15 | Cyperaceae | Monocot |
| bog chickweed | Stellaria alsine | STAL4 | Caryophyllaceae | Dicot |
| bog Labrador tea | Ledum groenlandicum | LEGR | Ericaceae | Dicot |
| bog muhly | Muhlenbergia uniflora | MUUN | Poaceae | Monocot |
| bog sedge | Kobresia | KOBRE | Cyperaceae | Monocot |
| bog white violet | Viola lanceolata | VILA4 | Violaceae | Dicot |
| bog white violet | Viola lanceolata ssp. lanceolata | VILAL | Violaceae | Dicot |
| bog white violet | Viola lanceolata ssp. occidentalis | VILAO | Violaceae | Dicot |
| bog willow | Salix pedicellaris | SAPE2 | Salicaceae | Dicot |
| bog willowherb | Epilobium leptophyllum | EPLE2 | Onagraceae | Dicot |
| bog yellowcress | Rorippa palustris | ROPA2 | Brassicaceae | Dicot |
| Boggs Lake hedgehyssop | Gratiola heterosepala | GRHE | Scrophulariaceae | Dicot |
| Bolander"s bedstraw | Galium bolanderi | GABO | Rubiaceae | Dicot |
| Bolander"s bluegrass | Poa bolanderi | POBO | Poaceae | Monocot |
| Bolander"s hawkweed | Hieracium bolanderi | HIBO | Asteraceae | Dicot |
| Bolander"s lily | Lilium bolanderi | LIBO | Liliaceae | Monocot |
| Bolander"s linanthus | Leptosiphon bolanderi | LEBO9 | Polemoniaceae | Dicot |
| Bolander"s madia | Kyhosia bolanderi | KYBO | Asteraceae | Dicot |
| Bolander"s monkeyflower | Mimulus bolanderi | MIBO3 | Scrophulariaceae | Dicot |
| Bolander"s onion | Allium bolanderi | ALBO | Liliaceae | Monocot |
| Bolander"s onion | Allium bolanderi var. bolanderi | ALBOB | Liliaceae | Monocot |
| Bolander"s onion | Allium bolanderi var. mirabile | ALBOM | Liliaceae | Monocot |
| Bolander"s pea | Lathyrus vestitus ssp. bolanderi | LAVEB | Fabaceae | Dicot |
| Bolander"s phacelia | Phacelia bolanderi | PHBO | Hydrophyllaceae | Dicot |
| Bolander"s quillwort | Isoetes bolanderi | ISBO | Isoetaceae | Quillwort |
| Bolander"s ragwort | Packera bolanderi | PABO6 | Asteraceae | Dicot |
| Bolander"s ragwort | Packera bolanderi var. bolanderi | PABOB | Asteraceae | Dicot |
| Bolander"s reedgrass | Calamagrostis bolanderi | CABO | Poaceae | Monocot |
| Bolander"s rush | Juncus bolanderi | JUBO | Juncaceae | Monocot |
| Bolander"s sedge | Carex bolanderi | CABO2 | Cyperaceae | Monocot |
| Bolander"s silene | Silene hookeri ssp. bolanderi | SIHOB | Caryophyllaceae | Dicot |
| Bolander"s spikerush | Eleocharis bolanderi | ELBO | Cyperaceae | Monocot |
| Bolander"s water-starwort | Callitriche heterophylla ssp. bolanderi | CAHEB3 | Callitrichaceae | Dicot |
| Bolander"s yampah | Perideridia bolanderi | PEBO2 | Apiaceae | Dicot |
| Bolander"s yampah | Perideridia bolanderi ssp. bolanderi | PEBOB | Apiaceae | Dicot |
| Bonneville shootingstar | Dodecatheon conjugens | DOCO | Primulaceae | Dicot |
| Bonneville shootingstar | Dodecatheon conjugens ssp. conjugens | DOCOC3 | Primulaceae | Dicot |
| Bonneville shootingstar | Dodecatheon conjugens ssp. viscidum | DOCOV2 | Primulaceae | Dicot |
| Booth"s evening primrose | Camissonia boothii | CABO7 | Onagraceae | Dicot |
| Booth"s suncup | Camissonia boothii ssp. boothii | CABOB | Onagraceae | Dicot |
| Booth"s willow | Salix boothii | SABO2 | Salicaceae | Dicot |
| borage | Borago | BORAG | Boraginaceae | Dicot |
| boraxweed | Nitrophila occidentalis | NIOC2 | Chenopodiaceae | Dicot |
| boreal locoweed | Oxytropis borealis | OXBO | Fabaceae | Dicot |
| boreal starwort | Stellaria borealis | STBO3 | Caryophyllaceae | Dicot |
| boreal starwort | Stellaria borealis ssp. borealis | STBOB | Caryophyllaceae | Dicot |
| bottlebrush sedge | Carex hystericina | CAHY4 | Cyperaceae | Monocot |
| bouncingbet | Saponaria officinalis | SAOF4 | Caryophyllaceae | Dicot |
| Bourgeau"s pepperweed | Lepidium ramosissimum var. bourgeauanum | LERAB2 | Brassicaceae | Dicot |
| bowlesia | Bowlesia | BOWLE | Apiaceae | Dicot |
| box knotweed | Polygonum buxiforme | POBU2 | Polygonaceae | Dicot |
| boxelder | Acer negundo | ACNE2 | Aceraceae | Dicot |
| boxelder | Acer negundo var. negundo | ACNEN | Aceraceae | Dicot |
| brackenfern | Pteridium | PTERI | Dennstaedtiaceae | Fern |
| bracted lousewort | Pedicularis bracteosa | PEBR | Scrophulariaceae | Dicot |
| bracted lousewort | Pedicularis bracteosa var. bracteosa | PEBRB | Scrophulariaceae | Dicot |
| bracted popcornflower | Plagiobothrys bracteatus | PLBR | Boraginaceae | Dicot |
| bracted popcornflower | Plagiobothrys bracteatus var. bracteatus | PLBRB | Boraginaceae | Dicot |
| bractless hedgehyssop | Gratiola ebracteata | GREB | Scrophulariaceae | Dicot |
| Bradshaw"s desertparsley | Lomatium bradshawii | LOBR | Apiaceae | Dicot |
| Brainerd"s sedge | Carex brainerdii | CABR7 | Cyperaceae | Monocot |
| branched Indian clover | Trifolium dichotomum | TRDI6 | Fabaceae | Dicot |
| branched lagophylla | Lagophylla ramosissima | LARA | Asteraceae | Dicot |
| branched lagophylla | Lagophylla ramosissima ssp. ramosissima | LARAR | Asteraceae | Dicot |
| branching phacelia | Phacelia ramosissima | PHRA2 | Hydrophyllaceae | Dicot |
| branching phacelia | Phacelia ramosissima var. eremophila | PHRAE | Hydrophyllaceae | Dicot |
| branching phacelia | Phacelia ramosissima var. ramosissima | PHRAR | Hydrophyllaceae | Dicot |
| branching phacelia | Phacelia ramosissima var. subglabra | PHRAS2 | Hydrophyllaceae | Dicot |
| Brandegee"s onion | Allium brandegeei | ALBR | Liliaceae | Monocot |
| Brandegee"s springbeauty | Claytonia saxosa | CLSA3 | Portulacaceae | Dicot |
| brasenia | Brasenia | BRASE | Cabombaceae | Dicot |
| Brazilian vervain | Verbena brasiliensis | VEBR2 | Verbenaceae | Dicot |
| Brazilian watermeal | Wolffia brasiliensis | WOBR | Lemnaceae | Monocot |
| Brazilian waterweed | Egeria densa | EGDE | Hydrocharitaceae | Monocot |
| Brewer spruce | Picea breweriana | PIBR | Pinaceae | Gymnosperm |
| Brewer"s aster | Eucephalus breweri | EUBR12 | Asteraceae | Dicot |
| Brewer"s bittercress | Cardamine breweri | CABR6 | Brassicaceae | Dicot |
| Brewer"s bittercress | Cardamine breweri var. breweri | CABRB | Brassicaceae | Dicot |
| Brewer"s bittercress | Cardamine breweri var. orbicularis | CABRO | Brassicaceae | Dicot |
| Brewer"s cliffbrake | Pellaea breweri | PEBR4 | Pteridaceae | Fern |
| Brewer"s fleabane | Erigeron breweri | ERBR4 | Asteraceae | Dicot |
| Brewer"s lupine | Lupinus breweri | LUBR3 | Fabaceae | Dicot |
| Brewer"s lupine | Lupinus breweri var. breweri | LUBRB2 | Fabaceae | Dicot |
| Brewer"s miterwort | Mitella breweri | MIBR6 | Saxifragaceae | Dicot |
| Brewer"s monkeyflower | Mimulus breweri | MIBR5 | Scrophulariaceae | Dicot |
| Brewer"s navarretia | Navarretia breweri | NABR | Polemoniaceae | Dicot |
| Brewer"s rockcress | Arabis breweri | ARBR | Brassicaceae | Dicot |
| Brewer"s rockcress | Arabis breweri var. breweri | ARBRB | Brassicaceae | Dicot |
| Brewer"s rush | Juncus breweri | JUBR10 | Juncaceae | Monocot |
| Brewer"s sedge | Carex breweri | CABR12 | Cyperaceae | Monocot |
| Brewer"s snapdragon | Sairocarpus breweri | SABR12 | Scrophulariaceae | Dicot |
| brickellbush | Brickellia | BRICK | Asteraceae | Dicot |
| brickellbush aster | Eucephalus brickellioides | EUBR13 | Asteraceae | Dicot |
| bride"s bonnet | Clintonia uniflora | CLUN2 | Liliaceae | Monocot |
| bride"s feathers | Aruncus dioicus | ARDI8 | Rosaceae | Dicot |
| bride"s feathers | Aruncus dioicus var. acuminatus | ARDIA | Rosaceae | Dicot |
| Bridges" brodiaea | Triteleia bridgesii | TRBR7 | Liliaceae | Monocot |
| Bridges" cliffbrake | Pellaea bridgesii | PEBR5 | Pteridaceae | Fern |
| Bridges" gilia | Navarretia leptalea ssp. leptalea | NALEL2 | Polemoniaceae | Dicot |
| Bridges" pincushionplant | Navarretia leptalea | NALE5 | Polemoniaceae | Dicot |
| brightblue speedwell | Veronica serpyllifolia ssp. humifusa | VESEH2 | Scrophulariaceae | Dicot |
| brightgreen spleenwort | Asplenium trichomanes-ramosum | ASTR10 | Aspleniaceae | Fern |
| brightwhite | Prenanthella exigua | PREX | Asteraceae | Dicot |
| bristleflower collomia | Collomia macrocalyx | COMA3 | Polemoniaceae | Dicot |
| bristlegrass | Setaria | SETAR | Poaceae | Monocot |
| bristleleaf bulrush | Isolepis setacea | ISSE2 | Cyperaceae | Monocot |
| bristlemallow | Modiola | MODIO | Malvaceae | Dicot |
| bristleweed | Hazardia | HAZAR | Asteraceae | Dicot |
| bristly dogstail grass | Cynosurus echinatus | CYEC | Poaceae | Monocot |
| bristly fiddleneck | Amsinckia tessellata | AMTE3 | Boraginaceae | Dicot |
| bristly fiddleneck | Amsinckia tessellata var. tessellata | AMTET | Boraginaceae | Dicot |
| bristly gentian | Gentiana plurisetosa | GEPL6 | Gentianaceae | Dicot |
| bristly hawksbeard | Crepis setosa | CRSE2 | Asteraceae | Dicot |
| bristly jewelflower | Streptanthus glandulosus | STGL8 | Brassicaceae | Dicot |
| bristly jewelflower | Streptanthus glandulosus ssp. glandulosus | STGLG | Brassicaceae | Dicot |
| bristly locust | Robinia hispida | ROHI | Fabaceae | Dicot |
| bristly locust | Robinia hispida var. hispida | ROHIH | Fabaceae | Dicot |
| bristly lovegrass | Cladoraphis | CLADO | Poaceae | Monocot |
| bristly lovegrass | Cladoraphis cyperoides | CLCY2 | Poaceae | Monocot |
| bristly mousetail | Myosurus apetalus | MYAP | Ranunculaceae | Dicot |
| bristly mousetail | Myosurus apetalus var. borealis | MYAPB | Ranunculaceae | Dicot |
| bristly mousetail | Myosurus apetalus var. montanus | MYAPM | Ranunculaceae | Dicot |
| bristly Nootka rose | Rosa nutkana var. hispida | RONUH | Rosaceae | Dicot |
| bristly oxtongue | Picris echioides | PIEC | Asteraceae | Dicot |
| bristly stickseed | Hackelia setosa | HASE | Boraginaceae | Dicot |
| bristlyleaf rockcress | Arabis rectissima | ARRE | Brassicaceae | Dicot |
| bristlyleaf rockcress | Arabis rectissima var. rectissima | ARRER2 | Brassicaceae | Dicot |
| bristlystalked sedge | Carex leptalea | CALE10 | Cyperaceae | Monocot |
| bristlystalked sedge | Carex leptalea ssp. leptalea | CALEL4 | Cyperaceae | Monocot |
| bristlystem checkerbloom | Sidalcea hirtipes | SIHI3 | Malvaceae | Dicot |
| British Columbia wildginger | Asarum caudatum | ASCA2 | Aristolochiaceae | Dicot |
| British timothy | Phleum paniculatum | PHPA8 | Poaceae | Monocot |
| brittle bladderfern | Cystopteris fragilis | CYFR2 | Dryopteridaceae | Fern |
| brittle pricklypear | Opuntia fragilis | OPFR | Cactaceae | Dicot |
| brittle sandwort | Minuartia nuttallii ssp. fragilis | MINUF | Caryophyllaceae | Dicot |
| brittle sandwort | Minuartia nuttallii ssp. gracilis | MINUG | Caryophyllaceae | Dicot |
| brittle sandwort | Minuartia nuttallii ssp. gregaria | MINUG2 | Caryophyllaceae | Dicot |
| brittle spineflower | Chorizanthe brevicornu | CHBR | Polygonaceae | Dicot |
| brittle spineflower | Chorizanthe brevicornu var. spathulata | CHBRS | Polygonaceae | Dicot |
| brittlestem hempnettle | Galeopsis tetrahit | GATE2 | Lamiaceae | Dicot |
| brittlestem hempnettle | Galeopsis tetrahit var. tetrahit | GATET2 | Lamiaceae | Dicot |
| broadfruit bur-reed | Sparganium eurycarpum | SPEU | Sparganiaceae | Monocot |
| broadfruit mariposa lily | Calochortus nitidus | CANI | Liliaceae | Monocot |
| broadkeel milkvetch | Astragalus platytropis | ASPL3 | Fabaceae | Dicot |
| broadleaf arnica | Arnica latifolia | ARLA8 | Asteraceae | Dicot |
| broadleaf arrowhead | Sagittaria latifolia | SALA2 | Alismataceae | Monocot |
| broadleaf bluebells | Mertensia platyphylla | MEPL | Boraginaceae | Dicot |
| broadleaf bluebells | Mertensia platyphylla var. subcordata | MEPLS | Boraginaceae | Dicot |
| broadleaf cattail | Typha latifolia | TYLA | Typhaceae | Monocot |
| broadleaf false carrot | Turgenia latifolia | TULA | Apiaceae | Dicot |
| broadleaf forget-me-not | Myosotis latifolia | MYLA4 | Boraginaceae | Dicot |
| broadleaf helleborine | Epipactis helleborine | EPHE | Orchidaceae | Monocot |
| broadleaf knotweed | Polygonum minimum | POMI2 | Polygonaceae | Dicot |
| broadleaf lupine | Lupinus latifolius | LULA4 | Fabaceae | Dicot |
| broadleaf lupine | Lupinus latifolius ssp. latifolius | LULAL3 | Fabaceae | Dicot |
| broadleaf lupine | Lupinus latifolius ssp. viridifolius | LULAV | Fabaceae | Dicot |
| broadleaf lupine | Lupinus latifolius ssp. viridifolius var. barbatus | LULAB | Fabaceae | Dicot |
| broadleaf lupine | Lupinus latifolius ssp. viridifolius var. viridifolius | LULAV2 | Fabaceae | Dicot |
| broadleaf milkvetch | Astragalus lentiginosus var. chartaceus | ASLEC | Fabaceae | Dicot |
| broadleaf pondweed | Stuckenia striata | STST20 | Potamogetonaceae | Monocot |
| broadleaf rush | Juncus planifolius | JUPL | Juncaceae | Monocot |
| broadleaf starflower | Trientalis borealis ssp. latifolia | TRBOL | Primulaceae | Dicot |
| broadleaf stonecrop | Sedum spathulifolium ssp. spathulifolium | SESPS | Crassulaceae | Dicot |
| broadleaf stonecrop | Sedum spathulifolium | SESP | Crassulaceae | Dicot |
| broadleaf stonecrop | Sedum spathulifolium ssp. pruinosum | SESPP | Crassulaceae | Dicot |
| broadleaved pepperweed | Lepidium latifolium | LELA2 | Brassicaceae | Dicot |
| broadlipped twayblade | Listera convallarioides | LICO5 | Orchidaceae | Monocot |
| broadnineleaf biscuitroot | Lomatium triternatum var. anomalum | LOTRA | Apiaceae | Dicot |
| broadpod draba | Draba platycarpa | DRPL | Brassicaceae | Dicot |
| broadsheath desertparsley | Lomatium vaginatum | LOVA | Apiaceae | Dicot |
| broadstemmed onion | Allium platycaule | ALPL2 | Liliaceae | Monocot |
| broadtooth monkeyflower | Mimulus latidens | MILA4 | Scrophulariaceae | Dicot |
| brodiaea | Brodiaea | BRODI | Liliaceae | Monocot |
| brome | Bromus | BROMU | Poaceae | Monocot |
| brome fescue | Vulpia bromoides | VUBR | Poaceae | Monocot |
| brook cinquefoil | Potentilla rivalis | PORI3 | Rosaceae | Dicot |
| brook saxifrage | Saxifraga odontoloma | SAOD2 | Saxifragaceae | Dicot |
| brook wakerobin | Trillium rivale | TRRI2 | Liliaceae | Monocot |
| brookfoam | Boykinia | BOYKI | Saxifragaceae | Dicot |
| brookweed | Samolus | SAMOL | Primulaceae | Dicot |
| broom | Spartium | SPART2 | Fabaceae | Dicot |
| broom | Cytisus | CYTIS | Fabaceae | Dicot |
| broom | Genista | GENIS | Fabaceae | Dicot |
| broom sedge | Carex scoparia | CASC11 | Cyperaceae | Monocot |
| broom sedge | Carex scoparia var. scoparia | CASCS | Cyperaceae | Monocot |
| broom snakeweed | Gutierrezia sarothrae | GUSA2 | Asteraceae | Dicot |
| broomcorn millet | Panicum miliaceum ssp. miliaceum | PAMIM | Poaceae | Monocot |
| broomleaf toadflax | Linaria genistifolia | LIGE | Scrophulariaceae | Dicot |
| broomrape | Orobanche | OROBA | Orobanchaceae | Dicot |
| brown dogwood | Cornus glabrata | COGL3 | Cornaceae | Dicot |
| brown mustard | Brassica juncea | BRJU | Brassicaceae | Dicot |
| brown sedge | Carex subfusca | CASU6 | Cyperaceae | Monocot |
| Brown"s pea | Lathyrus lanszwertii var. brownii | LALAB2 | Fabaceae | Dicot |
| Brown"s peony | Paeonia brownii | PABR | Paeoniaceae | Dicot |
| browneyes | Camissonia claviformis | CACL4 | Onagraceae | Dicot |
| browneyes | Camissonia claviformis ssp. cruciformis | CACLC | Onagraceae | Dicot |
| browneyes | Camissonia claviformis ssp. integrior | CACLI | Onagraceae | Dicot |
| brownfruit rush | Juncus pelocarpus | JUPE | Juncaceae | Monocot |
| brownhead rush | Juncus phaeocephalus | JUPH | Juncaceae | Monocot |
| brownhead rush | Juncus phaeocephalus var. phaeocephalus | JUPHP2 | Juncaceae | Monocot |
| brownies | Mimulus douglasii | MIDO2 | Scrophulariaceae | Dicot |
| brownish beaksedge | Rhynchospora capitellata | RHCA12 | Cyperaceae | Monocot |
| brownray knapweed | Centaurea jacea | CEJA | Asteraceae | Dicot |
| Bruneau mariposa lily | Calochortus bruneaunis | CABR4 | Liliaceae | Monocot |
| buckbean | Menyanthes | MENYA | Menyanthaceae | Dicot |
| buckbean | Menyanthes trifoliata | METR3 | Menyanthaceae | Dicot |
| buckbrush | Ceanothus cuneatus | CECU | Rhamnaceae | Dicot |
| buckbrush | Ceanothus cuneatus var. cuneatus | CECUC3 | Rhamnaceae | Dicot |
| buckeye | Aesculus | AESCU | Hippocastanaceae | Dicot |
| buckhorn plantain | Plantago coronopus | PLCO3 | Plantaginaceae | Dicot |
| buckthorn | Rhamnus | RHAMN | Rhamnaceae | Dicot |
| buckthorn | Frangula | FRANG | Rhamnaceae | Dicot |
| buckwheat | Fagopyrum | FAGOP2 | Polygonaceae | Dicot |
| buckwheat | Fagopyrum esculentum | FAES2 | Polygonaceae | Dicot |
| buckwheat | Eriogonum | ERIOG | Polygonaceae | Dicot |
| buckwheat milkvetch | Astragalus caricinus | ASCA12 | Fabaceae | Dicot |
| bud sagebrush | Picrothamnus | PICRO | Asteraceae | Dicot |
| bud sagebrush | Picrothamnus desertorum | PIDE4 | Asteraceae | Dicot |
| Buek"s groundsel | Packera subnuda | PASU40 | Asteraceae | Dicot |
| buffaloberry | Shepherdia | SHEPH | Elaeagnaceae | Dicot |
| buffalobur nightshade | Solanum rostratum | SORO | Solanaceae | Dicot |
| bugbane | Trautvetteria | TRAUT | Ranunculaceae | Dicot |
| bugle | Ajuga | AJUGA | Lamiaceae | Dicot |
| bugloss | Anchusa | ANCHU | Boraginaceae | Dicot |
| buglossoides | Buglossoides | BUGLO | Boraginaceae | Dicot |
| bugseed | Corispermum | CORIS | Chenopodiaceae | Dicot |
| Bukhara fleeceflower | Polygonum baldschuanicum | POBA3 | Polygonaceae | Dicot |
| bulbil onion | Allium geyeri var. tenerum | ALGET | Liliaceae | Monocot |
| bulblet-bearing water hemlock | Cicuta bulbifera | CIBU | Apiaceae | Dicot |
| bulbous bluegrass | Poa bulbosa | POBU | Poaceae | Monocot |
| bulbous canarygrass | Phalaris aquatica | PHAQ | Poaceae | Monocot |
| bulbous rush | Juncus bulbosus | JUBU2 | Juncaceae | Monocot |
| bulbous woodland-star | Lithophragma glabrum | LIGL2 | Saxifragaceae | Dicot |
| bull clover | Trifolium fucatum | TRFU | Fabaceae | Dicot |
| bull thistle | Cirsium vulgare | CIVU | Asteraceae | Dicot |
| bulrush | Isolepis | ISOLE | Cyperaceae | Monocot |
| bulrush | Trichophorum | TRICH22 | Cyperaceae | Monocot |
| bulrush | Schoenoplectus | SCHOE6 | Cyperaceae | Monocot |
| bulrush | Schoenoplectiella | SCHOE7 | Cyperaceae | Monocot |
| bulrush | Schoenoplectus ×carinatus | SCCA25 | Cyperaceae | Monocot |
| bulrush | Schoenoplectus ×oblongus | SCOB10 | Cyperaceae | Monocot |
| bulrush | Scirpus | SCIRP | Cyperaceae | Monocot |
| bunchberry dogwood | Cornus canadensis | COCA13 | Cornaceae | Dicot |
| bupleurum | Bupleurum | BUPLE | Apiaceae | Dicot |
| bur bristlegrass | Setaria adhaerens | SEAD | Poaceae | Monocot |
| bur chervil | Anthriscus caucalis | ANCA14 | Apiaceae | Dicot |
| bur-reed | Sparganium | SPARG | Sparganiaceae | Monocot |
| burclover | Medicago polymorpha | MEPO3 | Fabaceae | Dicot |
| burdock | Arctium | ARCTI | Asteraceae | Dicot |
| burnet | Sanguisorba | SANGU2 | Rosaceae | Dicot |
| burningbush | Bassia scoparia | BASC5 | Chenopodiaceae | Dicot |
| burnweed | Erechtites | ERECH | Asteraceae | Dicot |
| burrweed | Soliva | SOLIV | Asteraceae | Dicot |
| bush chinquapin | Chrysolepis sempervirens | CHSE11 | Fagaceae | Dicot |
| bush monkeyflower | Diplacus | DIPLA3 | Scrophulariaceae | Dicot |
| bush penstemon | Penstemon fruticosus | PEFR3 | Scrophulariaceae | Dicot |
| bush penstemon | Penstemon fruticosus var. fruticosus | PEFRF4 | Scrophulariaceae | Dicot |
| bushy bird"s beak | Cordylanthus ramosus | CORA5 | Scrophulariaceae | Dicot |
| bushy blazingstar | Mentzelia dispersa | MEDI | Loasaceae | Dicot |
| bushy blazingstar | Mentzelia dispersa var. dispersa | MEDID | Loasaceae | Dicot |
| bushy blazingstar | Mentzelia dispersa var. latifolia | MEDIL | Loasaceae | Dicot |
| bushy knotweed | Polygonum ramosissimum | PORA3 | Polygonaceae | Dicot |
| bushy knotweed | Polygonum ramosissimum var. prolificum | PORAP | Polygonaceae | Dicot |
| buttecandle | Cryptantha celosioides | CRCE | Boraginaceae | Dicot |
| butter and eggs | Linaria vulgaris | LIVU2 | Scrophulariaceae | Dicot |
| butterbur | Petasites | PETAS | Asteraceae | Dicot |
| buttercup | Ranunculus | RANUN | Ranunculaceae | Dicot |
| buttercup suksdorfia | Suksdorfia ranunculifolia | SURA | Saxifragaceae | Dicot |
| butterfly violet | Viola psychodes | VIPS | Violaceae | Dicot |
| butterflybush | Buddleja | BUDDL2 | Buddlejaceae | Dicot |
| butterwort | Pinguicula | PINGU | Lentibulariaceae | Dicot |
| buttonbush dodder | Cuscuta cephalanthi | CUCE | Cuscutaceae | Dicot |
| Buxbaum"s sedge | Carex buxbaumii | CABU6 | Cyperaceae | Monocot |
| cabbage | Brassica oleracea | BROL | Brassicaceae | Dicot |
| cacaliopsis | Cacaliopsis | CACAL4 | Asteraceae | Dicot |
| calamus | Acorus calamus | ACCA4 | Acoraceae | Monocot |
| Caley pea | Lathyrus hirsutus | LAHI2 | Fabaceae | Dicot |
| calibrachoa | Calibrachoa | CALIB | Solanaceae | Dicot |
| calicoflower | Downingia | DOWNI | Campanulaceae | Dicot |
| California amaranth | Amaranthus californicus | AMCA | Amaranthaceae | Dicot |
| California balsamroot | Balsamorhiza macrolepis | BAMA3 | Asteraceae | Dicot |
| California balsamroot | Balsamorhiza macrolepis var. platylepis | BAMAP | Asteraceae | Dicot |
| California barberry | Mahonia pinnata ssp. pinnata | MAPIP2 | Berberidaceae | Dicot |
| California barley | Hordeum brachyantherum ssp. californicum | HOBRC2 | Poaceae | Monocot |
| California bastard toadflax | Comandra umbellata ssp. californica | COUMC | Santalaceae | Dicot |
| California bentgrass | Agrostis densiflora | AGDE7 | Poaceae | Monocot |
| California black oak | Quercus kelloggii | QUKE | Fagaceae | Dicot |
| California blackberry | Rubus ursinus | RUUR | Rosaceae | Dicot |
| California blackberry | Rubus ursinus ssp. macropetalus | RUURM | Rosaceae | Dicot |
| California blackberry | Rubus ursinus ssp. ursinus | RUURU | Rosaceae | Dicot |
| California blackberry | Rubus ursinus ssp. ursinus var. ursinus | RUURU2 | Rosaceae | Dicot |
| California bog asphodel | Narthecium californicum | NACA2 | Liliaceae | Monocot |
| California brickellbush | Brickellia californica | BRCA3 | Asteraceae | Dicot |
| California brickellbush | Brickellia californica var. californica | BRCAC | Asteraceae | Dicot |
| California brodiaea | Brodiaea californica | BRCA4 | Liliaceae | Monocot |
| California brodiaea | Brodiaea californica ssp. leptandra | BRCAL3 | Liliaceae | Monocot |
| California brome | Bromus carinatus | BRCA5 | Poaceae | Monocot |
| California broomrape | Orobanche californica | ORCA2 | Orobanchaceae | Dicot |
| California broomrape | Orobanche californica ssp. californica | ORCAC2 | Orobanchaceae | Dicot |
| California buckthorn | Frangula californica | FRCA12 | Rhamnaceae | Dicot |
| California buckthorn | Frangula californica ssp. occidentalis | FRCAO4 | Rhamnaceae | Dicot |
| California bulrush | Schoenoplectus californicus | SCCA11 | Cyperaceae | Monocot |
| California buttercup | Ranunculus californicus | RACA2 | Ranunculaceae | Dicot |
| California butterwort | Pinguicula macroceras | PIMA7 | Lentibulariaceae | Dicot |
| California butterwort | Pinguicula macroceras var. macroceras | PIMAM2 | Lentibulariaceae | Dicot |
| California canarygrass | Phalaris californica | PHCA4 | Poaceae | Monocot |
| California compassplant | Wyethia angustifolia | WYAN | Asteraceae | Dicot |
| California damsonium | Damasonium californicum | DACA12 | Alismataceae | Monocot |
| California false hellebore | Veratrum californicum | VECA2 | Liliaceae | Monocot |
| California false hellebore | Veratrum californicum var. californicum | VECAC2 | Liliaceae | Monocot |
| California fescue | Festuca californica | FECA | Poaceae | Monocot |
| California foothill pine | Pinus sabiniana | PISA2 | Pinaceae | Gymnosperm |
| California goldenrod | Solidago californica | SOCA5 | Asteraceae | Dicot |
| California goldfields | Lasthenia californica | LACA7 | Asteraceae | Dicot |
| California goldfields | Lasthenia californica ssp. californica | LACAC2 | Asteraceae | Dicot |
| California goose tongue | Plantago maritima var. californica | PLMAC2 | Plantaginaceae | Dicot |
| California grass of Parnassus | Parnassia californica | PACA18 | Saxifragaceae | Dicot |
| California greenbrier | Smilax californica | SMCA2 | Smilacaceae | Monocot |
| California groundcone | Boschniakia strobilacea | BOST2 | Orobanchaceae | Dicot |
| California harebell | Asyneuma prenanthoides | ASPR10 | Campanulaceae | Dicot |
| California hazelnut | Corylus cornuta var. californica | COCOC | Betulaceae | Dicot |
| California helianthella | Helianthella californica | HECA | Asteraceae | Dicot |
| California hesperochiron | Hesperochiron californicus | HECA7 | Hydrophyllaceae | Dicot |
| California huckleberry | Vaccinium ovatum | VAOV2 | Ericaceae | Dicot |
| California Indian potato | Orogenia fusiformis | ORFU | Apiaceae | Dicot |
| California knotweed | Polygonum californicum | POCA7 | Polygonaceae | Dicot |
| California lady"s slipper | Cypripedium californicum | CYCA4 | Orchidaceae | Monocot |
| California laurel | Umbellularia | UMBEL | Lauraceae | Dicot |
| California laurel | Umbellularia californica | UMCA | Lauraceae | Dicot |
| California laurel | Umbellularia californica var. californica | UMCAC | Lauraceae | Dicot |
| California licorice-root | Ligusticum californicum | LICA | Apiaceae | Dicot |
| California lomatium | Lomatium californicum | LOCA3 | Apiaceae | Dicot |
| California maidenhair | Adiantum jordanii | ADJO | Pteridaceae | Fern |
| California melicgrass | Melica californica | MECA2 | Poaceae | Monocot |
| California melicgrass | Melica californica var. californica | MECAC | Poaceae | Monocot |
| California milkwort | Polygala californica | POCA5 | Polygalaceae | Dicot |
| California mistmaiden | Romanzoffia californica | ROCA6 | Hydrophyllaceae | Dicot |
| California mock orange | Philadelphus californicus | PHCA18 | Hydrangeaceae | Dicot |
| California mountain ash | Sorbus californica | SOCA8 | Rosaceae | Dicot |
| California mustard | Guillenia lasiophylla | GULA4 | Brassicaceae | Dicot |
| California needlegrass | Achnatherum occidentale ssp. californicum | ACOCC | Poaceae | Monocot |
| California nettle | Urtica dioica ssp. gracilis | URDIG | Urticaceae | Dicot |
| California oatgrass | Danthonia californica | DACA3 | Poaceae | Monocot |
| California phacelia | Phacelia californica | PHCA | Hydrophyllaceae | Dicot |
| California pinefoot | Pityopus californica | PICA9 | Monotropaceae | Dicot |
| California pitcherplant | Darlingtonia | DARLI | Sarraceniaceae | Dicot |
| California pitcherplant | Darlingtonia californica | DACA5 | Sarraceniaceae | Dicot |
| California plumeseed | Rafinesquia californica | RACA | Asteraceae | Dicot |
| California ponysfoot | Dichondra donelliana | DIDO3 | Convolvulaceae | Dicot |
| California poppy | Eschscholzia | ESCHS | Papaveraceae | Dicot |
| California poppy | Eschscholzia californica | ESCA2 | Papaveraceae | Dicot |
| California poppy | Eschscholzia californica ssp. californica | ESCAC | Papaveraceae | Dicot |
| California rayless fleabane | Erigeron inornatus | ERIN2 | Asteraceae | Dicot |
| California rayless fleabane | Erigeron inornatus var. inornatus | ERINI | Asteraceae | Dicot |
| California red fir | Abies magnifica | ABMA | Pinaceae | Gymnosperm |
| California red fir | Abies magnifica var. magnifica | ABMAM | Pinaceae | Gymnosperm |
| California rockjasmine | Androsace elongata | ANEL2 | Primulaceae | Dicot |
| California rockjasmine | Androsace elongata ssp. acuta | ANELA | Primulaceae | Dicot |
| California sandaster | Corethrogyne filaginifolia var. californica | COFIC | Asteraceae | Dicot |
| California sandwort | Minuartia californica | MICA7 | Caryophyllaceae | Dicot |
| California saxifrage | Saxifraga californica | SACA18 | Saxifragaceae | Dicot |
| California seapink | Armeria maritima ssp. californica | ARMAC2 | Plumbaginaceae | Dicot |
| California sedge | Carex californica | CACA9 | Cyperaceae | Monocot |
| California spikenard | Aralia californica | ARCA2 | Araliaceae | Dicot |
| California stickseed | Hackelia californica | HACA | Boraginaceae | Dicot |
| California stoneseed | Lithospermum californicum | LICA11 | Boraginaceae | Dicot |
| California strawberry | Fragaria vesca ssp. californica | FRVEC2 | Rosaceae | Dicot |
| California sweetgrass | Hierochloe occidentalis | HIOC | Poaceae | Monocot |
| California swordfern | Polystichum californicum | POCA25 | Dryopteridaceae | Fern |
| California valerian | Valeriana californica | VACA2 | Valerianaceae | Dicot |
| California waterwort | Elatine californica | ELCA | Elatinaceae | Dicot |
| California wax myrtle | Morella californica | MOCA6 | Myricaceae | Dicot |
| California wild grape | Vitis californica | VICA5 | Vitaceae | Dicot |
| California wild hollyhock | Iliamna latibracteata | ILLA2 | Malvaceae | Dicot |
| California wildrose | Rosa californica | ROCA2 | Rosaceae | Dicot |