List of Nevada Plants
| Plant Name | Scientific Name | Plant CD | Family | Type |
|---|---|---|---|---|
| Abert"s creeping zinnia | Sanvitalia abertii | SAAB | Asteraceae | Dicot |
| Abrams" sandmat | Chamaesyce abramsiana | CHAB2 | Euphorbiaceae | Dicot |
| abruptbeak sedge | Carex abrupta | CAAB2 | Cyperaceae | Monocot |
| acacia | Acacia | ACACI | Fabaceae | Dicot |
| achyronychia | Achyronychia | ACHYR3 | Caryophyllaceae | Dicot |
| Ackerman"s milkvetch | Astragalus ackermanii | ASAC5 | Fabaceae | Dicot |
| acorn buckwheat | Eriogonum glandulosum | ERGL4 | Polygonaceae | Dicot |
| Acton"s brittlebush | Encelia actonii | ENAC | Asteraceae | Dicot |
| acute Indian paintbrush | Castilleja hispida ssp. acuta | CAHIA2 | Scrophulariaceae | Dicot |
| African mustard | Malcolmia africana | MAAF | Brassicaceae | Dicot |
| agave | Agave | AGAVE | Agavaceae | Monocot |
| agoseris | Agoseris | AGOSE | Asteraceae | Dicot |
| ailanthus | Ailanthus | AILAN | Simaroubaceae | Dicot |
| Aladdin"s slippers | Astragalus amphioxys var. vespertinus | ASAMV | Fabaceae | Dicot |
| Alaska draba | Draba stenoloba | DRST2 | Brassicaceae | Dicot |
| Alaska draba | Draba stenoloba var. ramosa | DRSTR | Brassicaceae | Dicot |
| Alaska oniongrass | Melica subulata | MESU | Poaceae | Monocot |
| Alaska oniongrass | Melica subulata var. subulata | MESUS | Poaceae | Monocot |
| 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 mountain mahogany | Cercocarpus montanus | CEMO2 | Rosaceae | Dicot |
| alderleaf mountain mahogany | Cercocarpus montanus var. montanus | CEMOM4 | Rosaceae | Dicot |
| Aleutian maidenhair | Adiantum aleuticum | ADAL | Pteridaceae | Fern |
| Alexander"s buckwheat | Eriogonum ochrocephalum var. alexandrae | EROCA | Polygonaceae | Dicot |
| alfalfa | Medicago sativa ssp. sativa | MESAS | Fabaceae | Dicot |
| alfalfa | Medicago | MEDIC | Fabaceae | Dicot |
| alfalfa | Medicago sativa | MESA | Fabaceae | Dicot |
| alfalfa dodder | Cuscuta approximata | CUAP2 | Cuscutaceae | Dicot |
| alhagi | Alhagi | ALHAG | Fabaceae | 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 goldenbush | Isocoma acradenia | ISAC2 | Asteraceae | Dicot |
| alkali goldenbush | Isocoma acradenia var. acradenia | ISACA2 | Asteraceae | Dicot |
| alkali goldenbush | Isocoma acradenia var. eremophila | ISACE2 | Asteraceae | Dicot |
| alkali mallow | Malvella leprosa | MALE3 | Malvaceae | Dicot |
| alkali mariposa lily | Calochortus striatus | CAST2 | Liliaceae | Monocot |
| alkali marsh aster | Almutaster | ALMUT2 | Asteraceae | Dicot |
| alkali marsh aster | Almutaster pauciflorus | ALPA14 | Asteraceae | Dicot |
| alkali pepperweed | Lepidium dictyotum | LEDI2 | Brassicaceae | Dicot |
| alkali pepperweed | Lepidium dictyotum var. dictyotum | LEDID | Brassicaceae | Dicot |
| alkali phacelia | Phacelia neglecta | PHNE | Hydrophyllaceae | Dicot |
| alkali sacaton | Sporobolus airoides | SPAI | Poaceae | Monocot |
| alkali swainsonpea | Sphaerophysa salsula | SPSA3 | Fabaceae | Dicot |
| alkali wildrye | Leymus simplex | LESI5 | Poaceae | Monocot |
| alkaligrass | Puccinellia | PUCCI | Poaceae | Monocot |
| alkaliweed | Cressa | CRESS | Convolvulaceae | Dicot |
| allenrolfea | Allenrolfea | ALLEN | Chenopodiaceae | Dicot |
| alpine alumroot | Heuchera cylindrica var. alpina | HECYA | Saxifragaceae | Dicot |
| alpine bedstraw | Galium hypotrichium | GAHY | Rubiaceae | Dicot |
| alpine bedstraw | Galium hypotrichium ssp. hypotrichium | GAHYH | Rubiaceae | Dicot |
| alpine bentgrass | Agrostis humilis | AGHU | Poaceae | Monocot |
| alpine biscuitroot | Lomatium graveolens var. alpinum | LOGRA | Apiaceae | Dicot |
| alpine bistort | Polygonum viviparum | POVI3 | Polygonaceae | Dicot |
| alpine bladderpod | Lesquerella alpina | LEAL | Brassicaceae | Dicot |
| alpine bladderpod | Lesquerella alpina var. alpina | LEALA5 | Brassicaceae | Dicot |
| alpine bluegrass | Poa alpina | POAL2 | Poaceae | Monocot |
| alpine buttercup | Ranunculus adoneus | RAAD | Ranunculaceae | Dicot |
| alpine buttercup | Ranunculus adoneus var. alpinus | RAADA | Ranunculaceae | Dicot |
| alpine collomia | Collomia debilis | CODE | Polemoniaceae | Dicot |
| alpine collomia | Collomia debilis var. trifida | CODET | Polemoniaceae | Dicot |
| alpine false springparsley | Pseudocymopterus montanus | PSMO | Apiaceae | Dicot |
| alpine fescue | Festuca brachyphylla | FEBR | Poaceae | Monocot |
| alpine gentian | Gentiana newberryi | GENE | Gentianaceae | Dicot |
| alpine gooseberry | Ribes lasianthum | RILA2 | Grossulariaceae | Dicot |
| alpine groundsel | Packera pauciflora | PAPA19 | Asteraceae | Dicot |
| alpine Jacob"s-ladder | Polemonium foliosissimum var. alpinum | POFOA2 | Polemoniaceae | Dicot |
| alpine ladyfern | Athyrium americanum | ATAM | Dryopteridaceae | Fern |
| 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 sagebrush | Artemisia scopulorum | ARSC | Asteraceae | Dicot |
| alpine serpentweed | Tonestus alpinus | TOAL2 | Asteraceae | Dicot |
| alpine sheep sorrel | Rumex paucifolius | RUPA6 | 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 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 |
| alpineflames | Pyrrocoma apargioides | PYAP2 | Asteraceae | Dicot |
| alpinegold | Hulsea | HULSE | Asteraceae | Dicot |
| alplily | Lloydia | LLOYD | Liliaceae | Monocot |
| alsike clover | Trifolium hybridum | TRHY | Fabaceae | Dicot |
| alumroot | Heuchera | HEUCH | Saxifragaceae | Dicot |
| alumroot brookfoam | Telesonix heucheriformis | TEHE5 | 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 | Alyssum strigosum | ALST2 | Brassicaceae | Dicot |
| alyssum evening primrose | Camissonia boothii ssp. alyssoides | CABOA | Onagraceae | Dicot |
| Amargosa niterwort | Nitrophila mohavensis | NIMO | Chenopodiaceae | Dicot |
| American alpine speedwell | Veronica wormskjoldii | VEWO2 | Scrophulariaceae | Dicot |
| American alpine speedwell | Veronica wormskjoldii var. wormskjoldii | VEWOW | Scrophulariaceae | Dicot |
| 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 common reed | Phragmites australis ssp. americanus | PHAUA6 | Poaceae | Monocot |
| American dragonhead | Dracocephalum parviflorum | DRPA2 | Lamiaceae | Dicot |
| 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 licorice | Glycyrrhiza lepidota | GLLE3 | Fabaceae | Dicot |
| American mannagrass | Glyceria grandis | GLGR | Poaceae | Monocot |
| American mannagrass | Glyceria grandis var. grandis | GLGRG | Poaceae | Monocot |
| American red raspberry | Rubus idaeus | RUID | Rosaceae | Dicot |
| American rockbrake | Cryptogramma acrostichoides | CRAC3 | Pteridaceae | Fern |
| American sloughgrass | Beckmannia syzigachne | BESY | Poaceae | Monocot |
| American speedwell | Veronica americana | VEAM2 | Scrophulariaceae | Dicot |
| American vetch | Vicia americana | VIAM | Fabaceae | Dicot |
| American vetch | Vicia americana ssp. americana | VIAMA3 | Fabaceae | Dicot |
| 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 yellowrocket | Barbarea orthoceras | BAOR | Brassicaceae | Dicot |
| Ames" milkvetch | Astragalus pulsiferae var. pulsiferae | ASPUP5 | Fabaceae | Dicot |
| Ames" milkvetch | Astragalus pulsiferae | ASPU7 | Fabaceae | Dicot |
| analogue sedge | Carex simulata | CASI2 | Cyperaceae | Monocot |
| Anderson"s buttercup | Ranunculus andersonii | RAAN | Ranunculaceae | Dicot |
| Anderson"s buttercup | Ranunculus andersonii var. andersonii | RAANA | Ranunculaceae | Dicot |
| Anderson"s buttercup | Ranunculus andersonii var. tenellus | RAANT | Ranunculaceae | Dicot |
| Anderson"s hawksbeard | Crepis runcinata ssp. andersonii | CRRUA | Asteraceae | Dicot |
| Anderson"s larkspur | Delphinium andersonii | DEAN | Ranunculaceae | Dicot |
| Anderson"s lupine | Lupinus andersonii | LUAN2 | Fabaceae | Dicot |
| Anderson"s milkvetch | Astragalus andersonii | ASAN2 | Fabaceae | Dicot |
| anelsonia | Anelsonia | ANELS | Brassicaceae | Dicot |
| anemone | Anemone | ANEMO | Ranunculaceae | Dicot |
| angelica | Angelica | ANGEL | Apiaceae | Dicot |
| anisocoma | Anisocoma | ANISO3 | Asteraceae | Dicot |
| annual agoseris | Agoseris heterophylla | AGHE2 | Asteraceae | Dicot |
| annual agoseris | Agoseris heterophylla var. heterophylla | AGHEH | Asteraceae | Dicot |
| annual bastardcabbage | Rapistrum rugosum | RARU | Brassicaceae | Dicot |
| annual bluegrass | Poa annua | POAN | Poaceae | Monocot |
| annual fescue | Vulpia myuros | VUMY | Poaceae | Monocot |
| annual hairgrass | Deschampsia danthonioides | DEDA | Poaceae | Monocot |
| annual muhly | Muhlenbergia minutissima | MUMI2 | Poaceae | Monocot |
| annual polemonium | Polemonium micranthum | POMI | Polemoniaceae | Dicot |
| annual psathyrotes | Psathyrotes annua | PSAN | Asteraceae | 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 redspot monkeyflower | Mimulus parryi | MIPA4 | Scrophulariaceae | Dicot |
| annual sandwort | Minuartia pusilla | MIPU7 | Caryophyllaceae | Dicot |
| annual sandwort | Minuartia pusilla var. pusilla | MIPUP | Caryophyllaceae | Dicot |
| annual toothleaf | Stillingia spinulosa | STSP | Euphorbiaceae | 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 Island skeletonplant | Lygodesmia dianthopsis | LYDI4 | Asteraceae | Dicot |
| Antelope Valley beardtongue | Penstemon janishiae | PEJA2 | Scrophulariaceae | Dicot |
| Apache plume | Fallugia | FALLU | Rosaceae | Dicot |
| Apache plume | Fallugia paradoxa | FAPA | Rosaceae | Dicot |
| aparejograss | Muhlenbergia utilis | MUUT | Poaceae | Monocot |
| apple | Malus | MALUS | Rosaceae | Dicot |
| apricot globemallow | Sphaeralcea ambigua ssp. ambigua | SPAMA | Malvaceae | Dicot |
| Arabian schismus | Schismus arabicus | SCAR | Poaceae | Monocot |
| arcane milkvetch | Astragalus obscurus | ASOB4 | Fabaceae | Dicot |
| arctic bluegrass | Poa arctica | POAR2 | Poaceae | Monocot |
| arctic bluegrass | Poa arctica ssp. arctica | POARA2 | Poaceae | Monocot |
| arctic pearlwort | Sagina saginoides | SASA | Caryophyllaceae | Dicot |
| arctic rush | Juncus arcticus | JUAR2 | Juncaceae | Monocot |
| Argus blazingstar | Mentzelia oreophila | MEOR3 | Loasaceae | Dicot |
| arid tansyaster | Machaeranthera arida | MAAR5 | Asteraceae | Dicot |
| aridland goosefoot | Chenopodium desiccatum | CHDE | Chenopodiaceae | Dicot |
| Arizona blanketflower | Gaillardia arizonica | GAAR2 | Asteraceae | Dicot |
| Arizona brome | Bromus arizonicus | BRAR4 | Poaceae | Monocot |
| Arizona centaury | Centaurium arizonicum | CEAR12 | Gentianaceae | Dicot |
| Arizona cypress | Hesperocyparis arizonica | HEAR22 | Cupressaceae | Gymnosperm |
| Arizona false goldenaster | Heterotheca fulcrata var. arizonica | HEFUA | Asteraceae | Dicot |
| Arizona fescue | Festuca arizonica | FEAR2 | Poaceae | Monocot |
| Arizona fiestaflower | Pholistoma auritum var. arizonicum | PHAUA | Hydrophyllaceae | Dicot |
| Arizona four-nerve daisy | Tetraneuris acaulis var. arizonica | TEACA | Asteraceae | Dicot |
| Arizona honeysweet | Tidestromia oblongifolia | TIOB | Amaranthaceae | Dicot |
| Arizona ipomopsis | Ipomopsis arizonica | IPAR2 | Polemoniaceae | Dicot |
| Arizona lupine | Lupinus arizonicus | LUAR4 | Fabaceae | Dicot |
| Arizona lupine | Lupinus arizonicus ssp. arizonicus | LUARA7 | Fabaceae | Dicot |
| Arizona lupine | Lupinus arizonicus ssp. arizonicus var. arizonicus | LUARA12 | Fabaceae | Dicot |
| Arizona mousetail | Myosurus cupulatus | MYCU | Ranunculaceae | Dicot |
| Arizona popcornflower | Plagiobothrys arizonicus | PLAR | Boraginaceae | Dicot |
| Arizona spinystar | Escobaria vivipara var. arizonica | ESVIA | Cactaceae | Dicot |
| Arizona thistle | Cirsium arizonicum | CIAR3 | Asteraceae | Dicot |
| Arizona threeawn | Aristida arizonica | ARAR6 | Poaceae | Monocot |
| Arizona whitefeather | Ivesia arizonica var. arizonica | IVARA | Rosaceae | Dicot |
| armoracia | Armoracia | ARMOR | Brassicaceae | Dicot |
| arnica | Arnica | ARNIC | Asteraceae | Dicot |
| arrow thelypody | Thelypodium sagittatum | THSA2 | Brassicaceae | Dicot |
| arrow thelypody | Thelypodium sagittatum ssp. ovalifolium | THSAO | Brassicaceae | Dicot |
| arrow thelypody | Thelypodium sagittatum ssp. sagittatum | THSAS | Brassicaceae | Dicot |
| arrowgrass | Triglochin | TRIGL | Juncaginaceae | Monocot |
| arrowhead | Sagittaria | SAGIT | Alismataceae | Monocot |
| arrowleaf balsamroot | Balsamorhiza sagittata | BASA3 | Asteraceae | Dicot |
| arrowleaf ragwort | Senecio triangularis | SETR | Asteraceae | Dicot |
| arrowweed | Pluchea sericea | PLSE | Asteraceae | Dicot |
| arroyo willow | Salix lasiolepis | SALA6 | Salicaceae | Dicot |
| arroyo willow | Salix lasiolepis var. lasiolepis | SALAL2 | Salicaceae | Dicot |
| arumleaf arrowhead | Sagittaria cuneata | SACU | Alismataceae | Monocot |
| ash | Fraxinus | FRAXI | Oleaceae | Dicot |
| Ash Meadows blazingstar | Mentzelia leucophylla | MELE3 | Loasaceae | Dicot |
| Ash Meadows gumweed | Grindelia fraxinopratensis | GRFR | Asteraceae | Dicot |
| Ash Meadows lady"s tresses | Spiranthes infernalis | SPIN7 | Orchidaceae | Monocot |
| Ash Meadows milkvetch | Astragalus phoenix | ASPH | Fabaceae | Dicot |
| ashen milkvetch | Astragalus tephrodes | ASTE8 | Fabaceae | Dicot |
| ashen milkvetch | Astragalus tephrodes var. brachylobus | ASTEB | Fabaceae | Dicot |
| ashen milkvetch | Astragalus tephrodes var. chloridae | ASTEC | Fabaceae | Dicot |
| ashy silktassel | Garrya flavescens | GAFL2 | Garryaceae | Dicot |
| Asian mustard | Brassica tournefortii | BRTO | Brassicaceae | Dicot |
| asparagus | Asparagus | ASPAR | Liliaceae | Monocot |
| aspen bluebells | Mertensia arizonica | MEAR6 | Boraginaceae | Dicot |
| 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 |
| aspen onion | Allium bisceptrum var. palmeri | ALBIP | Liliaceae | Monocot |
| aspen pea | Lathyrus laetivirens | LALA6 | Fabaceae | Dicot |
| aster | Ionactis | IONAC | Asteraceae | Dicot |
| aster | Oreostemma | OREOS | Asteraceae | Dicot |
| aster | Eucephalus | EUCEP2 | Asteraceae | Dicot |
| aster | Eurybia | EURYB | Asteraceae | Dicot |
| aster | Symphyotrichum | SYMPH4 | Asteraceae | Dicot |
| asthmaweed | Conyza bonariensis | COBO | Asteraceae | Dicot |
| Athel tamarisk | Tamarix aphylla | TAAP | Tamaricaceae | Dicot |
| atrichoseris | Atrichoseris | ATRIC | Asteraceae | Dicot |
| Aunt Lucy | Ellisia nyctelea | ELNY | Hydrophyllaceae | Dicot |
| Austin desertparsley | Lomatium austiniae | LOAU5 | Apiaceae | Dicot |
| Austin knotweed | Polygonum douglasii ssp. austiniae | PODOA2 | Polygonaceae | Dicot |
| Austin"s beardtongue | Penstemon floridus var. austinii | PEFLA2 | Scrophulariaceae | Dicot |
| Austin"s milkvetch | Astragalus austiniae | ASAU | Fabaceae | Dicot |
| Australian brome | Bromus arenarius | BRAR3 | Poaceae | Monocot |
| Australian saltbush | Atriplex semibaccata | ATSE | Chenopodiaceae | Dicot |
| autumn dwarf gentian | Gentianella amarella | GEAM3 | Gentianaceae | Dicot |
| autumn dwarf gentian | Gentianella amarella ssp. acuta | GEAMA | Gentianaceae | Dicot |
| Aven Nelson"s phacelia | Phacelia anelsonii | PHAN | Hydrophyllaceae | Dicot |
| avens | Geum | GEUM | Rosaceae | Dicot |
| awl-leaf lilaea | Lilaea scilloides | LISC4 | Juncaginaceae | Monocot |
| awlwort | Subularia | SUBUL | Brassicaceae | Dicot |
| baby blue eyes | Nemophila | NEMOP | Hydrophyllaceae | Dicot |
| baby blue eyes | Nemophila menziesii | NEME | Hydrophyllaceae | Dicot |
| baby blue eyes | Nemophila menziesii var. integrifolia | NEMEI | Hydrophyllaceae | Dicot |
| baby goldenrod | Solidago nana | SONA | Asteraceae | 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 |
| bahia | Bahia | BAHIA | Asteraceae | Dicot |
| Bailey"s buckwheat | Eriogonum baileyi | ERBA7 | Polygonaceae | Dicot |
| Bailey"s buckwheat | Eriogonum baileyi var. baileyi | ERBAB | Polygonaceae | Dicot |
| Bailey"s buckwheat | Eriogonum baileyi var. praebens | ERBAP | Polygonaceae | Dicot |
| Bailey"s greasewood | Sarcobatus baileyi | SABA14 | Chenopodiaceae | Dicot |
| Bailey"s ivesia | Ivesia baileyi | IVBA | Rosaceae | Dicot |
| Bailey"s ivesia | Ivesia baileyi var. baileyi | IVBAB | Rosaceae | Dicot |
| Bailey"s ivesia | Ivesia baileyi var. beneolens | IVBAB2 | Rosaceae | Dicot |
| Bailey"s ivesia | Ivesia baileyi var. setosa | IVBAS | Rosaceae | Dicot |
| bajada lupine | Lupinus concinnus | LUCO | Fabaceae | 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 |
| bald brome | Bromus racemosus | BRRA2 | Poaceae | Monocot |
| ball draba | Draba sphaeroides | DRSP6 | Brassicaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta | IPCO5 | Polemoniaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta ssp. congesta | IPCOC3 | Polemoniaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta ssp. crebrifolia | IPCOC | Polemoniaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta ssp. montana | IPCOM | Polemoniaceae | Dicot |
| ballhead ipomopsis | Ipomopsis congesta ssp. nevadensis | IPCON | 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. simulans | ARCOS | Caryophyllaceae | Dicot |
| ballhead waterleaf | Hydrophyllum capitatum | HYCA4 | Hydrophyllaceae | Dicot |
| balloonpod milkvetch | Astragalus whitneyi | ASWH | Fabaceae | Dicot |
| balloonpod milkvetch | Astragalus whitneyi var. lenophyllus | ASWHL | Fabaceae | Dicot |
| balloonpod milkvetch | Astragalus whitneyi var. whitneyi | ASWHW | Fabaceae | Dicot |
| balsam poplar | Populus balsamifera | POBA2 | Salicaceae | Dicot |
| balsamroot | Balsamorhiza | BALSA | Asteraceae | Dicot |
| banana yucca | Yucca baccata | YUBA | Agavaceae | Monocot |
| baneberry | Actaea | ACTAE | Ranunculaceae | Dicot |
| barbed goatgrass | Aegilops triuncialis | AETR | Poaceae | Monocot |
| barberry | Mahonia | MAHON | Berberidaceae | Dicot |
| barbwire Russian thistle | Salsola paulsenii | SAPA8 | Chenopodiaceae | Dicot |
| barestem biscuitroot | Lomatium nudicaule | LONU2 | Apiaceae | Dicot |
| baretwig neststraw | Stylocline psilocarphoides | STPS | Asteraceae | Dicot |
| barley | Hordeum | HORDE | Poaceae | Monocot |
| barley | ×Elyhordeum | ELYHO | Poaceae | Monocot |
| Barneby"s Indian paintbrush | Castilleja scabrida var. barnebyana | CASCB3 | Scrophulariaceae | Dicot |
| Barneby"s phacelia | Phacelia barnebyana | PHBA | Hydrophyllaceae | Dicot |
| barnyardgrass | Echinochloa crus-galli | ECCR | Poaceae | Monocot |
| barrel cactus | Ferocactus | FEROC | Cactaceae | Dicot |
| Barren Valley collomia | Collomia renacta | CORE10 | Polemoniaceae | Dicot |
| basalt milkvetch | Astragalus filipes | ASFI | Fabaceae | Dicot |
| basalt springparsley | Cymopterus basalticus | CYBA3 | Apiaceae | Dicot |
| bashful four o"clock | Mirabilis pudica | MIPU5 | Nyctaginaceae | Dicot |
| bashful four o"clock | Mirabilis pudica var. pubescens | MIPUP3 | Nyctaginaceae | Dicot |
| bashful four o"clock | Mirabilis pudica var. pudica | MIPUP4 | Nyctaginaceae | 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 saltbush | Atriplex tridentata | ATTR3 | Chenopodiaceae | Dicot |
| basin wildrye | Leymus cinereus | LECI4 | Poaceae | Monocot |
| basin yellow cryptantha | Cryptantha confertiflora | CRCO12 | Boraginaceae | Dicot |
| bastard toadflax | Comandra | COMAN | Santalaceae | Dicot |
| bastard toadflax | Comandra umbellata | COUM | Santalaceae | Dicot |
| bastardcabbage | Rapistrum | RAPIS | Brassicaceae | Dicot |
| bastardsage | Eriogonum wrightii | ERWR | Polygonaceae | Dicot |
| bastardsage | Eriogonum wrightii var. subscaposum | ERWRS | Polygonaceae | Dicot |
| bastardsage | Eriogonum wrightii var. wrightii | ERWRW | Polygonaceae | Dicot |
| bay forget-me-not | Myosotis laxa | MYLA | Boraginaceae | Dicot |
| beach knotweed | Polygonum paronychia | POPA7 | Polygonaceae | Dicot |
| beaded lipfern | Cheilanthes wootonii | CHWO | Pteridaceae | Fern |
| beaked spikerush | Eleocharis rostellata | ELRO2 | Cyperaceae | Monocot |
| beaked spiny polygala | Polygala heterorhyncha | POHE7 | Polygalaceae | Dicot |
| beancaper | Zygophyllum | ZYGOP | Zygophyllaceae | Dicot |
| Bear River fleabane | Erigeron ursinus | ERUR2 | Asteraceae | Dicot |
| beard lichen | Usnea | USNEA2 | Parmeliaceae | Lichen |
| bearded cinquefoil | Potentilla crinita | POCR4 | Rosaceae | Dicot |
| bearded cinquefoil | Potentilla crinita var. crinita | POCRC2 | Rosaceae | Dicot |
| bearded cryptantha | Cryptantha barbigera | CRBA5 | Boraginaceae | 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 |
| beardgrass | Bothriochloa | BOTHR | 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 | Nolina | NOLIN | Liliaceae | Monocot |
| bearpoppy | Arctomecon | ARCTO | Papaveraceae | Dicot |
| Beatley"s buckwheat | Eriogonum rosense var. beatleyae | ERROB | Polygonaceae | Dicot |
| Beatley"s clover | Trifolium andersonii ssp. beatleyae | TRANB | Fabaceae | Dicot |
| Beatley"s milkvetch | Astragalus beatleyae | ASBE5 | Fabaceae | Dicot |
| Beatley"s phacelia | Phacelia beatleyae | PHBE3 | Hydrophyllaceae | Dicot |
| beautiful cinquefoil | Potentilla pulcherrima | POPU9 | Rosaceae | Dicot |
| beautiful phacelia | Phacelia pulchella | PHPU | Hydrophyllaceae | Dicot |
| beautiful phacelia | Phacelia pulchella var. pulchella | PHPUP3 | Hydrophyllaceae | Dicot |
| beautiful rockcress | Arabis pulchra | ARPU2 | Brassicaceae | Dicot |
| beautiful rockcress | Arabis pulchra var. gracilis | ARPUG | Brassicaceae | Dicot |
| beautiful rockcress | Arabis pulchra var. pulchra | ARPUP2 | Brassicaceae | Dicot |
| beautiful sandwort | Minuartia rubella | MIRU3 | Caryophyllaceae | Dicot |
| beautiful spikerush | Eleocharis bella | ELBE | Cyperaceae | Monocot |
| beautiful woolly sunflower | Eriophyllum ambiguum | ERAM3 | Asteraceae | Dicot |
| beautiful woolly sunflower | Eriophyllum ambiguum var. paleaceum | ERAMP | Asteraceae | Dicot |
| beaver Indian breadroot | Pediomelum castoreum | PECA24 | Fabaceae | Dicot |
| beaver povertyweed | Monolepis spathulata | MOSP | Chenopodiaceae | Dicot |
| beavertail pricklypear | Opuntia basilaris | OPBA2 | Cactaceae | Dicot |
| beavertail pricklypear | Opuntia basilaris var. basilaris | OPBAB2 | Cactaceae | Dicot |
| beavertail pricklypear | Opuntia basilaris var. brachyclada | OPBAB | Cactaceae | Dicot |
| Bebb willow | Salix bebbiana | SABE2 | Salicaceae | Dicot |
| Bebb"s sedge | Carex bebbii | CABE2 | Cyperaceae | Monocot |
| Beckwith"s clover | Trifolium beckwithii | TRBE2 | Fabaceae | Dicot |
| Beckwith"s milkvetch | Astragalus beckwithii | ASBE3 | Fabaceae | Dicot |
| Beckwith"s milkvetch | Astragalus beckwithii var. beckwithii | ASBEB | Fabaceae | Dicot |
| Beckwith"s milkvetch | Astragalus beckwithii var. purpureus | ASBEP | Fabaceae | Dicot |
| Beckwith"s rockcress | Arabis beckwithii | ARBE2 | Brassicaceae | Dicot |
| Beckwith"s violet | Viola beckwithii | VIBE2 | Violaceae | Dicot |
| Beckwith"s violet | Viola beckwithii ssp. beckwithii | VIBEB | Violaceae | Dicot |
| bedstraw | Galium | GALIU | Rubiaceae | Dicot |
| beebalm | Monarda | MONAR | Lamiaceae | Dicot |
| beeblossom | Gaura | GAURA | Onagraceae | Dicot |
| beebrush | Aloysia | ALOYS | Verbenaceae | Dicot |
| beechleaf frangula | Frangula betulifolia | FRBE2 | Rhamnaceae | Dicot |
| beggarticks | Bidens | BIDEN | Asteraceae | Dicot |
| bellflower | Campanula | CAMPA | Campanulaceae | Dicot |
| bellshape gilia | Linanthus campanulatus | LICA37 | Polemoniaceae | Dicot |
| bentgrass | Agrostis | AGROS2 | Poaceae | Monocot |
| bergia | Bergia | BERGI | Elatinaceae | Dicot |
| Bermudagrass | Cynodon | CYNOD | Poaceae | Monocot |
| Bermudagrass | Cynodon dactylon | CYDA | Poaceae | Monocot |
| Bessey"s locoweed | Oxytropis besseyi | OXBE2 | Fabaceae | 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 devils beggartick | Bidens vulgata | BIVU | Asteraceae | Dicot |
| big galleta | Pleuraphis rigida | PLRI3 | Poaceae | Monocot |
| big sagebrush | Artemisia tridentata | ARTR2 | Asteraceae | Dicot |
| big sagebrush | Artemisia tridentata ssp. spiciformis | ARTRS2 | Asteraceae | Dicot |
| big saltbush | Atriplex lentiformis | ATLE | Chenopodiaceae | Dicot |
| big saltbush | Atriplex lentiformis ssp. lentiformis | ATLEL | Chenopodiaceae | Dicot |
| big squirreltail | Elymus multisetus | ELMU3 | Poaceae | Monocot |
| bigbract verbena | Verbena bracteata | VEBR | Verbenaceae | Dicot |
| Bigelow sage | Artemisia bigelovii | ARBI3 | Asteraceae | Dicot |
| Bigelow"s bluegrass | Poa bigelovii | POBI | Poaceae | Monocot |
| Bigelow"s linanthus | Linanthus bigelovii | LIBI2 | Polemoniaceae | Dicot |
| Bigelow"s monkeyflower | Mimulus bigelovii | MIBI6 | Scrophulariaceae | Dicot |
| Bigelow"s monkeyflower | Mimulus bigelovii var. bigelovii | MIBIB2 | Scrophulariaceae | Dicot |
| Bigelow"s nolina | Nolina bigelovii | NOBI | Liliaceae | Monocot |
| Bigelow"s tobacco | Nicotiana quadrivalvis var. bigelovii | NIQUB | Solanaceae | Dicot |
| bigflower agoseris | Agoseris grandiflora | AGGR | Asteraceae | Dicot |
| bighead dustymaiden | Chaenactis macrantha | CHMA | Asteraceae | Dicot |
| bighead horkelia | Horkelia fusca ssp. capitata | HOFUC2 | Rosaceae | Dicot |
| bigleaf lupine | Lupinus polyphyllus | LUPO2 | Fabaceae | Dicot |
| bigleaf lupine | Lupinus polyphyllus ssp. superbus | LUPOS | Fabaceae | Dicot |
| bigleaf sedge | Carex amplifolia | CAAM10 | Cyperaceae | Monocot |
| bigseed alfalfa dodder | Cuscuta indecora | CUIN | Cuscutaceae | Dicot |
| bigseed alfalfa dodder | Cuscuta indecora var. bifida | CUINB | Cuscutaceae | Dicot |
| bigseed biscuitroot | Lomatium macrocarpum | LOMA3 | Apiaceae | Dicot |
| bigseed dodder | Cuscuta indecora var. neuropetala | CUINN | Cuscutaceae | Dicot |
| bigtooth maple | Acer grandidentatum | ACGR3 | Aceraceae | Dicot |
| bigtooth maple | Acer grandidentatum var. grandidentatum | ACGRG | Aceraceae | Dicot |
| billion-dollar grass | Echinochloa frumentacea | ECFR | Poaceae | Monocot |
| bindweed | Convolvulus | CONVO | Convolvulaceae | Dicot |
| birch | Betula | BETUL | Betulaceae | Dicot |
| bird"s-beak | Cordylanthus | CORDY | Scrophulariaceae | Dicot |
| bird-of-paradise shrub | Caesalpinia gilliesii | CAGI | Fabaceae | Dicot |
| birdcage evening primrose | Oenothera deltoides | OEDE2 | Onagraceae | Dicot |
| birdcage evening primrose | Oenothera deltoides ssp. ambigua | OEDEA | Onagraceae | Dicot |
| birdcage evening primrose | Oenothera deltoides ssp. deltoides | OEDED4 | Onagraceae | 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 |
| bitter cherry | Prunus emarginata | PREM | Rosaceae | Dicot |
| bitter cherry | Prunus emarginata var. emarginata | PREME | Rosaceae | Dicot |
| Bitter Creek phacelia | Phacelia salina | PHSA3 | Hydrophyllaceae | Dicot |
| bitter root | Lewisia rediviva | LERE7 | Portulacaceae | Dicot |
| bitter root | Lewisia rediviva var. minor | LEREM | Portulacaceae | Dicot |
| bitter root | Lewisia rediviva var. rediviva | LERER | Portulacaceae | Dicot |
| bitterbrush | Purshia | PURSH | Rosaceae | Dicot |
| bittercress | Cardamine | CARDA | Brassicaceae | 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 bogrush | Schoenus nigricans | SCNI | Cyperaceae | Monocot |
| black chokecherry | Prunus virginiana var. melanocarpa | PRVIM | Rosaceae | Dicot |
| black cottonwood | Populus balsamifera ssp. trichocarpa | POBAT | Salicaceae | Dicot |
| black elderberry | Sambucus nigra | SANI4 | Caprifoliaceae | Dicot |
| black grama | Bouteloua eriopoda | BOER4 | Poaceae | Monocot |
| black hawthorn | Crataegus douglasii | CRDO2 | Rosaceae | Dicot |
| black henbane | Hyoscyamus niger | HYNI | Solanaceae | Dicot |
| black locust | Robinia pseudoacacia | ROPS | Fabaceae | Dicot |
| black medick | Medicago lupulina | MELU | Fabaceae | Dicot |
| black mustard | Brassica nigra | BRNI | Brassicaceae | Dicot |
| Black Rock wild cabbage | Caulanthus barnebyi | CABA11 | Brassicaceae | Dicot |
| black sagebrush | Artemisia nova | ARNO4 | Asteraceae | Dicot |
| black sand spikerush | Eleocharis pachycarpa | ELPA | Cyperaceae | Monocot |
| black sedge | Carex nova | CANO3 | Cyperaceae | Monocot |
| blackandwhite sedge | Carex albonigra | CAAL6 | Cyperaceae | Monocot |
| blackberry | Rubus | RUBUS | Rosaceae | Dicot |
| blackbrush | Coleogyne ramosissima | CORA | Rosaceae | Dicot |
| blackfoot groundsmoke | Gayophytum racemosum | GARA | Onagraceae | Dicot |
| Blackfoot River evening primrose | Camissonia andina | CAAN14 | Onagraceae | Dicot |
| blackroot sedge | Carex elynoides | CAEL3 | Cyperaceae | Monocot |
| blackseed sandspurry | Spergularia atrosperma | SPAT | Caryophyllaceae | Dicot |
| blackspot hornpoppy | Glaucium corniculatum | GLCO3 | Papaveraceae | Dicot |
| blackstem spleenwort | Asplenium resiliens | ASRE | Aspleniaceae | Fern |
| bladder campion | Silene latifolia | SILA21 | Caryophyllaceae | Dicot |
| bladder campion | Silene latifolia ssp. alba | SILAA3 | Caryophyllaceae | Dicot |
| bladder senna | Colutea arborescens | COAR6 | Fabaceae | Dicot |
| bladderfern | Cystopteris | CYSTO | Dryopteridaceae | Fern |
| bladderpod | Lesquerella | LESQU | Brassicaceae | Dicot |
| bladdersage | Salazaria | SALAZ | Lamiaceae | Dicot |
| bladderwort | Utricularia | UTRIC | Lentibulariaceae | Dicot |
| Blaine fishhook cactus | Sclerocactus spinosior ssp. blainei | SCSPB | Cactaceae | Dicot |
| blanketflower | Gaillardia | GAILL | 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 |
| blite goosefoot | Chenopodium capitatum | CHCA4 | Chenopodiaceae | Dicot |
| Bloomer"s aster | Symphyotrichum campestre var. bloomeri | SYCAB | Asteraceae | Dicot |
| Blue Diamond cholla | Cylindropuntia ×multigeniculata | CYMU11 | Cactaceae | 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 fiestaflower | Pholistoma auritum | PHAU4 | Hydrophyllaceae | Dicot |
| blue grama | Bouteloua gracilis | BOGR2 | Poaceae | Monocot |
| blue lettuce | Lactuca tatarica | LATA | Asteraceae | Dicot |
| blue lettuce | Lactuca tatarica var. pulchella | LATAP | Asteraceae | 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 catchfly | Silene scaposa | SISC | Caryophyllaceae | Dicot |
| Blue Mountain prairie clover | Dalea ornata | DAOR2 | Fabaceae | Dicot |
| blue paloverde | Parkinsonia florida | PAFL6 | Fabaceae | Dicot |
| blue sage | Salvia pachyphylla | SAPA5 | Lamiaceae | Dicot |
| blue threeawn | Aristida purpurea var. nealleyi | ARPUN | Poaceae | Monocot |
| blue wildrye | Elymus glaucus | ELGL | Poaceae | Monocot |
| blue wildrye | Elymus glaucus ssp. glaucus | ELGLG | Poaceae | Monocot |
| blue-eyed grass | Sisyrinchium | SISYR | Iridaceae | Monocot |
| bluebells | Mertensia | MERTE | Boraginaceae | Dicot |
| blueberry | Vaccinium | VACCI | Ericaceae | Dicot |
| bluebonnet lupine | Lupinus palmeri | LUPA3 | Fabaceae | Dicot |
| bluebunch wheatgrass | Pseudoroegneria spicata ssp. spicata | PSSPS | Poaceae | Monocot |
| bluebunch wheatgrass | Pseudoroegneria spicata | PSSP6 | Poaceae | Monocot |
| bluecurls | Trichostema | TRICH9 | Lamiaceae | Dicot |
| bluedicks | Dichelostemma capitatum | DICA14 | Liliaceae | Monocot |
| bluedicks | Dichelostemma capitatum ssp. capitatum | DICAC5 | Liliaceae | Monocot |
| bluedicks | Dichelostemma capitatum ssp. pauciflorum | DICAP | Liliaceae | Monocot |
| bluefly honeysuckle | Lonicera caerulea var. cauriana | LOCAC3 | Caprifoliaceae | Dicot |
| bluegrass | Poa | POA | Poaceae | Monocot |
| bluejoint | Calamagrostis canadensis | CACA4 | Poaceae | Monocot |
| bluejoint | Calamagrostis canadensis var. canadensis | CACAC10 | Poaceae | Monocot |
| bluepod rockcress | Arabis glaucovalvula | ARGL2 | Brassicaceae | Dicot |
| bluestar | Amsonia | AMSON | Apocynaceae | Dicot |
| bluestem | Andropogon | ANDRO2 | Poaceae | Monocot |
| blunt spikerush | Eleocharis obtusa | ELOB2 | Cyperaceae | Monocot |
| blunt tansymustard | Descurainia obtusa | DEOB | Brassicaceae | Dicot |
| blunt tansymustard | Descurainia obtusa ssp. adenophora | DEOBA | Brassicaceae | Dicot |
| blunt tansymustard | Descurainia obtusa ssp. obtusa | DEOBO | Brassicaceae | Dicot |
| 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 |
| bluntlobe lupine | Lupinus obtusilobus | LUOB | Fabaceae | Dicot |
| bluntseed sweetroot | Osmorhiza depauperata | OSDE | Apiaceae | Dicot |
| Bodie Hills cusickiella | Cusickiella quadricostata | CUQU | Brassicaceae | Dicot |
| Bodie Hills rockcress | Arabis bodiensis | ARBO | Brassicaceae | Dicot |
| bog blueberry | Vaccinium uliginosum | VAUL | Ericaceae | Dicot |
| bog willowherb | Epilobium leptophyllum | EPLE2 | Onagraceae | Dicot |
| bog yellowcress | Rorippa palustris | ROPA2 | Brassicaceae | Dicot |
| bogrush | Schoenus | SCHOE4 | Cyperaceae | Monocot |
| Bolander"s bluegrass | Poa bolanderi | POBO | Poaceae | Monocot |
| Bolander"s milkvetch | Astragalus bolanderi | ASBO2 | Fabaceae | Dicot |
| Bolander"s quillwort | Isoetes bolanderi | ISBO | Isoetaceae | Quillwort |
| Bolander"s sedge | Carex bolanderi | CABO2 | Cyperaceae | Monocot |
| Bolander"s spikerush | Eleocharis bolanderi | ELBO | Cyperaceae | Monocot |
| Bolander"s yampah | Perideridia bolanderi | PEBO2 | Apiaceae | Dicot |
| Bolander"s yampah | Perideridia bolanderi ssp. bolanderi | PEBOB | Apiaceae | Dicot |
| Bonneville pea | Lathyrus brachycalyx | LABR | Fabaceae | Dicot |
| Bonneville pea | Lathyrus brachycalyx ssp. brachycalyx | LABRB | Fabaceae | Dicot |
| Bonneville saltbush | Atriplex bonnevillensis | ATBO | Chenopodiaceae | Dicot |
| Bonneville shootingstar | Dodecatheon conjugens | DOCO | Primulaceae | Dicot |
| Bonneville shootingstar | Dodecatheon conjugens ssp. conjugens | DOCOC3 | Primulaceae | Dicot |
| Booth"s evening primrose | Camissonia boothii | CABO7 | Onagraceae | Dicot |
| Booth"s evening primrose | Camissonia boothii ssp. intermedia | CABOI | Onagraceae | Dicot |
| Booth"s suncup | Camissonia boothii ssp. boothii | CABOB | Onagraceae | Dicot |
| Booth"s willow | Salix boothii | SABO2 | Salicaceae | Dicot |
| boraxweed | Nitrophila occidentalis | NIOC2 | Chenopodiaceae | Dicot |
| boreal locoweed | Oxytropis borealis | OXBO | Fabaceae | Dicot |
| boreal locoweed | Oxytropis borealis var. australis | OXBOA | Fabaceae | Dicot |
| boreal starwort | Stellaria borealis | STBO3 | Caryophyllaceae | Dicot |
| boreal starwort | Stellaria borealis ssp. borealis | STBOB | Caryophyllaceae | Dicot |
| Borrego milkvetch | Astragalus lentiginosus var. borreganus | ASLEB | Fabaceae | Dicot |
| bouncingbet | Saponaria officinalis | SAOF4 | Caryophyllaceae | Dicot |
| Boundary Peak rockcress | Arabis pinzliae | ARPI2 | Brassicaceae | Dicot |
| Bourgeau"s pepperweed | Lepidium ramosissimum var. bourgeauanum | LERAB2 | Brassicaceae | Dicot |
| bowlesia | Bowlesia | BOWLE | Apiaceae | Dicot |
| box pussytoes | Antennaria arcuata | ANAR4 | Asteraceae | Dicot |
| boxelder | Acer negundo | ACNE2 | Aceraceae | Dicot |
| boxelder | Acer negundo var. interius | ACNEI2 | Aceraceae | Dicot |
| brackenfern | Pteridium | PTERI | Dennstaedtiaceae | Fern |
| bractscale | Atriplex serenana | ATSE2 | Chenopodiaceae | Dicot |
| bractscale | Atriplex serenana var. serenana | ATSES | Chenopodiaceae | Dicot |
| branched lagophylla | Lagophylla ramosissima | LARA | Asteraceae | Dicot |
| branched lagophylla | Lagophylla ramosissima ssp. ramosissima | LARAR | Asteraceae | Dicot |
| branched noseburn | Tragia ramosa | TRRA5 | Euphorbiaceae | Dicot |
| branched pencil cholla | Cylindropuntia ramosissima | CYRA9 | Cactaceae | Dicot |
| branching phacelia | Phacelia ramosissima | PHRA2 | Hydrophyllaceae | Dicot |
| branching phacelia | Phacelia ramosissima var. eremophila | PHRAE | Hydrophyllaceae | Dicot |
| branching phacelia | Phacelia ramosissima var. latifolia | PHRAL | 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 |
| Brewer"s angelica | Angelica breweri | ANBR5 | Apiaceae | Dicot |
| 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 cliffbrake | Pellaea breweri | PEBR4 | Pteridaceae | Fern |
| Brewer"s fleabane | Erigeron breweri | ERBR4 | Asteraceae | Dicot |
| Brewer"s fleabane | Erigeron breweri var. breweri | ERBRB | Asteraceae | Dicot |
| Brewer"s fleabane | Erigeron breweri var. porphyreticus | ERBRP | 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 |
| brickellbush | Brickellia | BRICK | Asteraceae | Dicot |
| brickellbush goldenweed | Hazardia brickellioides | HABR3 | Asteraceae | Dicot |
| Bridge penstemon | Penstemon rostriflorus | PERO10 | Scrophulariaceae | Dicot |
| Bridger Mountain alumroot | Heuchera flabellifolia | HEFL14 | Saxifragaceae | Dicot |
| Bridger Mountain alumroot | Heuchera flabellifolia var. subsecta | HEFLS | Saxifragaceae | Dicot |
| Bridges" cliffbrake | Pellaea bridgesii | PEBR5 | Pteridaceae | Fern |
| Bridges" gilia | Navarretia leptalea ssp. bicolor | NALEB2 | 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 |
| bristlecup sandmat | Chamaesyce chaetocalyx | CHCH5 | Euphorbiaceae | Dicot |
| bristlecup sandmat | Chamaesyce chaetocalyx var. chaetocalyx | CHCHC3 | Euphorbiaceae | Dicot |
| bristlegrass | Setaria | SETAR | Poaceae | Monocot |
| bristleweed | Hazardia | HAZAR | Asteraceae | Dicot |
| bristly cryptantha | Cryptantha setosissima | CRSE5 | Boraginaceae | Dicot |
| bristly fiddleneck | Amsinckia tessellata | AMTE3 | Boraginaceae | Dicot |
| bristly fiddleneck | Amsinckia tessellata var. tessellata | AMTET | Boraginaceae | Dicot |
| 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 nama | Nama hispidum | NAHI | Hydrophyllaceae | Dicot |
| bristly Nootka rose | Rosa nutkana var. hispida | RONUH | Rosaceae | Dicot |
| bristly oxtongue | Picris echioides | PIEC | Asteraceae | Dicot |
| bristlyleaf rockcress | Arabis rectissima | ARRE | Brassicaceae | Dicot |
| bristlyleaf rockcress | Arabis rectissima var. rectissima | ARRER2 | Brassicaceae | Dicot |
| bristlyleaf rockcress | Arabis rectissima var. simulans | ARRES | Brassicaceae | Dicot |
| 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 spineflower | Chorizanthe brevicornu | CHBR | Polygonaceae | Dicot |
| brittle spineflower | Chorizanthe brevicornu var. brevicornu | CHBRB | Polygonaceae | Dicot |
| brittle spineflower | Chorizanthe brevicornu var. spathulata | CHBRS | Polygonaceae | Dicot |
| brittlebush | Encelia farinosa | ENFA | Asteraceae | Dicot |
| brittlebush | Encelia | ENCEL | Asteraceae | Dicot |
| broad fleabane | Erigeron latus | ERLA14 | Asteraceae | Dicot |
| broad-leaf gilia | Aliciella latifolia | ALLA13 | Polemoniaceae | Dicot |
| broadfruit bur-reed | Sparganium eurycarpum | SPEU | Sparganiaceae | Monocot |
| broadfruit combseed | Pectocarya platycarpa | PEPL | Boraginaceae | Dicot |
| broadkeel milkvetch | Astragalus platytropis | ASPL3 | Fabaceae | Dicot |
| broadleaf arnica | Arnica latifolia | ARLA8 | Asteraceae | Dicot |
| broadleaf beardtongue | Penstemon platyphyllus | PEPL4 | Scrophulariaceae | Dicot |
| broadleaf cattail | Typha latifolia | TYLA | Typhaceae | Monocot |
| broadleaf gilia | Aliciella latifolia ssp. latifolia | ALLAL3 | Polemoniaceae | Dicot |
| broadleaf knotweed | Polygonum minimum | POMI2 | Polygonaceae | Dicot |
| broadleaf lupine | Lupinus latifolius | LULA4 | Fabaceae | Dicot |
| broadleaf lupine | Lupinus latifolius ssp. longipes | LULAL2 | Fabaceae | Dicot |
| broadleaf milkvetch | Astragalus lentiginosus var. chartaceus | ASLEC | Fabaceae | Dicot |
| broadleaf pondweed | Stuckenia striata | STST20 | Potamogetonaceae | Monocot |
| broadleaved pepperweed | Lepidium latifolium | LELA2 | Brassicaceae | Dicot |
| broadlipped twayblade | Listera convallarioides | LICO5 | Orchidaceae | Monocot |
| broadpod draba | Draba platycarpa | DRPL | Brassicaceae | Dicot |
| broadsheath desertparsley | Lomatium vaginatum | LOVA | Apiaceae | Dicot |
| broadstemmed onion | Allium platycaule | ALPL2 | 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 |
| brookfoam | Telesonix | TELES2 | Saxifragaceae | Dicot |
| brookweed | Samolus | SAMOL | Primulaceae | Dicot |
| broom snakeweed | Gutierrezia sarothrae | GUSA2 | Asteraceae | Dicot |
| broom-like ragwort | Senecio spartioides | SESP3 | Asteraceae | Dicot |
| broom-like ragwort | Senecio spartioides var. spartioides | SESPS2 | Asteraceae | Dicot |
| broomcorn millet | Panicum miliaceum ssp. miliaceum | PAMIM | Poaceae | Monocot |
| broomrape | Orobanche | OROBA | Orobanchaceae | Dicot |
| broomsage | Lepidospartum | LEPID2 | Asteraceae | Dicot |
| brown flatsedge | Cyperus fuscus | CYFU3 | Cyperaceae | Monocot |
| 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. aurantiaca | CACLA2 | Onagraceae | Dicot |
| browneyes | Camissonia claviformis ssp. claviformis | CACLC3 | Onagraceae | Dicot |
| browneyes | Camissonia claviformis ssp. cruciformis | CACLC | Onagraceae | Dicot |
| browneyes | Camissonia claviformis ssp. funerea | CACLF | Onagraceae | Dicot |
| browneyes | Camissonia claviformis ssp. integrior | CACLI | Onagraceae | Dicot |
| brownfoot | Acourtia wrightii | ACWR5 | Asteraceae | Dicot |
| brownish sedge | Carex brunnescens | CABR15 | Cyperaceae | Monocot |
| brownish sedge | Carex brunnescens ssp. sphaerostachya | CABRS | Cyperaceae | Monocot |
| brownmargin buckwheat | Eriogonum ovalifolium var. eximium | EROVE | Polygonaceae | Dicot |
| brownplume wirelettuce | Stephanomeria pauciflora | STPA4 | Asteraceae | Dicot |
| browse milkvetch | Astragalus cibarius | ASCI2 | Fabaceae | Dicot |
| Bruneau mariposa lily | Calochortus bruneaunis | CABR4 | Liliaceae | Monocot |
| buck-horn cholla | Cylindropuntia acanthocarpa | CYAC8 | Cactaceae | Dicot |
| buckbean | Menyanthes | MENYA | Menyanthaceae | Dicot |
| buckbean | Menyanthes trifoliata | METR3 | Menyanthaceae | Dicot |
| buckhorn cholla | Cylindropuntia acanthocarpa var. acanthocarpa | CYACA2 | Cactaceae | Dicot |
| buckhorn cholla | Cylindropuntia acanthocarpa var. major | CYACM | Cactaceae | Dicot |
| buckthorn | Frangula | FRANG | Rhamnaceae | Dicot |
| buckthorn | Rhamnus | RHAMN | Rhamnaceae | Dicot |
| buckwheat | Eriogonum | ERIOG | Polygonaceae | Dicot |
| buckwheat | Stenogonum | STENO5 | Polygonaceae | Dicot |
| bud sagebrush | Picrothamnus | PICRO | Asteraceae | Dicot |
| bud sagebrush | Picrothamnus desertorum | PIDE4 | Asteraceae | Dicot |
| buffaloberry | Shepherdia | SHEPH | Elaeagnaceae | Dicot |
| buffalobur nightshade | Solanum rostratum | SORO | Solanaceae | Dicot |
| buffalograss | Bouteloua dactyloides | BODA2 | Poaceae | Monocot |
| bugseed | Corispermum | CORIS | Chenopodiaceae | Dicot |
| bulbil onion | Allium geyeri var. tenerum | ALGET | Liliaceae | Monocot |
| bulbous bluegrass | Poa bulbosa | POBU | Poaceae | Monocot |
| bulbous woodland-star | Lithophragma glabrum | LIGL2 | Saxifragaceae | Dicot |
| bull thistle | Cirsium vulgare | CIVU | Asteraceae | Dicot |
| Bullfrog Mountain pea | Lathyrus hitchcockianus | LAHI4 | Fabaceae | Dicot |
| bulrush | Schoenoplectus | SCHOE6 | Cyperaceae | Monocot |
| bulrush | Scirpus | SCIRP | Cyperaceae | Monocot |
| bundleflower | Desmanthus | DESMA | Fabaceae | Dicot |
| bur-reed | Sparganium | SPARG | Sparganiaceae | Monocot |
| burclover | Medicago polymorpha | MEPO3 | Fabaceae | Dicot |
| burdock | Arctium | ARCTI | Asteraceae | Dicot |
| burhead | Echinodorus | ECHIN6 | Alismataceae | Monocot |
| burnet | Sanguisorba | SANGU2 | Rosaceae | Dicot |
| burningbush | Bassia scoparia | BASC5 | Chenopodiaceae | Dicot |
| burrobrush | Hymenoclea salsola | HYSA | Asteraceae | Dicot |
| burrobrush | Hymenoclea salsola var. fasciculata | HYSAF | Asteraceae | Dicot |
| burrobrush | Hymenoclea salsola var. pentalepis | HYSAP | Asteraceae | Dicot |
| burrobrush | Hymenoclea | HYMEN3 | Asteraceae | Dicot |
| burrobush | Ambrosia dumosa | AMDU2 | Asteraceae | Dicot |
| burrograss | Scleropogon | SCLER7 | Poaceae | Monocot |
| burrograss | Scleropogon brevifolius | SCBR2 | Poaceae | Monocot |
| bush arrowleaf | Pleurocoronis pluriseta | PLPL | Asteraceae | Dicot |
| bush beardtongue | Keckiella breviflora | KEBR | Scrophulariaceae | Dicot |
| bush beardtongue | Keckiella breviflora ssp. breviflora | KEBRB | Scrophulariaceae | Dicot |
| bush beardtongue | Keckiella breviflora ssp. glabrisepala | KEBRG | Scrophulariaceae | Dicot |
| bush chinquapin | Chrysolepis sempervirens | CHSE11 | Fagaceae | Dicot |
| bush muhly | Muhlenbergia porteri | MUPO2 | Poaceae | Monocot |
| bush pea | Lathyrus brachycalyx ssp. zionis | LABRZ2 | Fabaceae | Dicot |
| bushloving cryptantha | Cryptantha dumetorum | CRDU | Boraginaceae | Dicot |
| bushmint | Hyptis | HYPTI | Lamiaceae | Dicot |
| bushy bedstraw | Galium matthewsii | GAMA4 | Rubiaceae | 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 bluestem | Andropogon glomeratus | ANGL2 | Poaceae | Monocot |
| bushy bluestem | Andropogon glomeratus var. pumilus | ANGLP | Poaceae | Monocot |
| bushy cryptantha | Cryptantha racemosa | CRRA2 | Boraginaceae | Dicot |
| bushy knotweed | Polygonum ramosissimum | PORA3 | Polygonaceae | Dicot |
| bushy knotweed | Polygonum ramosissimum var. ramosissimum | PORAR | Polygonaceae | Dicot |
| buttecandle | Cryptantha celosioides | CRCE | Boraginaceae | Dicot |
| butter and eggs | Linaria vulgaris | LIVU2 | Scrophulariaceae | Dicot |
| buttercup | Ranunculus | RANUN | Ranunculaceae | Dicot |
| butterflybush | Buddleja | BUDDL2 | Buddlejaceae | Dicot |
| button brittlebush | Encelia frutescens | ENFR | Asteraceae | Dicot |
| buttonbush dodder | Cuscuta cephalanthi | CUCE | Cuscutaceae | Dicot |
| Buxbaum"s sedge | Carex buxbaumii | CABU6 | Cyperaceae | Monocot |
| cactus apple | Opuntia engelmannii | OPEN3 | Cactaceae | Dicot |
| cactus apple | Opuntia engelmannii var. engelmannii | OPENE | Cactaceae | Dicot |
| cactus flat gilia | Aliciella heterostyla | ALHE3 | Polemoniaceae | Dicot |
| calico | Loeseliastrum | LOESE2 | Polemoniaceae | Dicot |
| calicoflower | Downingia | DOWNI | Campanulaceae | Dicot |
| California amaranth | Amaranthus californicus | AMCA | Amaranthaceae | Dicot |
| California ash | Fraxinus dipetala | FRDI2 | Oleaceae | Dicot |
| California balsamroot | Balsamorhiza macrolepis | BAMA3 | Asteraceae | Dicot |
| California balsamroot | Balsamorhiza macrolepis var. platylepis | BAMAP | Asteraceae | Dicot |
| California barley | Hordeum brachyantherum ssp. californicum | HOBRC2 | Poaceae | Monocot |
| California barrel cactus | Ferocactus cylindraceus | FECY | Cactaceae | Dicot |
| California bastard toadflax | Comandra umbellata ssp. californica | COUMC | Santalaceae | Dicot |
| California bearpoppy | Arctomecon californica | ARCA4 | Papaveraceae | Dicot |
| California brickellbush | Brickellia californica | BRCA3 | Asteraceae | Dicot |
| California brickellbush | Brickellia californica var. californica | BRCAC | Asteraceae | Dicot |
| California broomrape | Orobanche californica | ORCA2 | Orobanchaceae | Dicot |
| California buckthorn | Frangula californica | FRCA12 | Rhamnaceae | Dicot |
| California buckthorn | Frangula californica ssp. ursina | FRCAU | Rhamnaceae | Dicot |
| California caltrop | Kallstroemia californica | KACA | Zygophyllaceae | Dicot |
| California cottonrose | Logfia californica | LOCA19 | Asteraceae | Dicot |
| California croton | Croton californicus | CRCA5 | Euphorbiaceae | Dicot |
| California croton | Croton californicus var. californicus | CRCAC | Euphorbiaceae | Dicot |
| California damsonium | Damasonium californicum | DACA12 | Alismataceae | Monocot |
| California draba | Draba californica | DRCA5 | Brassicaceae | Dicot |
| California evening primrose | Oenothera californica | OECA2 | Onagraceae | Dicot |
| California evening primrose | Oenothera californica ssp. avita | OECAA2 | Onagraceae | Dicot |
| California fagonbush | Fagonia laevis | FALA | Zygophyllaceae | Dicot |
| California false hellebore | Veratrum californicum | VECA2 | Liliaceae | Monocot |
| California false hellebore | Veratrum californicum var. californicum | VECAC2 | Liliaceae | Monocot |
| California false pennyroyal | Hedeoma nana ssp. californica | HENAC | Lamiaceae | Dicot |
| California fan palm | Washingtonia filifera | WAFI | Arecaceae | Monocot |
| California fiddleleaf | Nama californicum | NACA3 | Hydrophyllaceae | Dicot |
| California grass of Parnassus | Parnassia californica | PACA18 | Saxifragaceae | Dicot |
| California helianthella | Helianthella californica | HECA | Asteraceae | Dicot |
| California hesperochiron | Hesperochiron californicus | HECA7 | Hydrophyllaceae | Dicot |
| California juniper | Juniperus californica | JUCA7 | Cupressaceae | Gymnosperm |
| California loosestrife | Lythrum californicum | LYCA4 | Lythraceae | Dicot |
| California manroot | Marah fabaceus | MAFA3 | Cucurbitaceae | Dicot |
| California manroot | Marah fabaceus var. agrestis | MAFAA | Cucurbitaceae | 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 oatgrass | Danthonia californica | DACA3 | Poaceae | Monocot |
| California plumeseed | Rafinesquia californica | RACA | Asteraceae | Dicot |
| California poppy | Eschscholzia | ESCHS | Papaveraceae | Dicot |
| California poppy | Eschscholzia californica | ESCA2 | Papaveraceae | Dicot |
| California poppy | Eschscholzia californica ssp. californica | ESCAC | Papaveraceae | Dicot |
| California poppy | Eschscholzia californica ssp. mexicana | ESCAM | 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 redbud | Cercis orbiculata | CEOR9 | Fabaceae | Dicot |
| California rockjasmine | Androsace elongata | ANEL2 | Primulaceae | Dicot |
| California rockjasmine | Androsace elongata ssp. acuta | ANELA | Primulaceae | Dicot |
| California satintail | Imperata brevifolia | IMBR2 | Poaceae | Monocot |
| California sawgrass | Cladium californicum | CLCA2 | Cyperaceae | Monocot |
| California shieldpod | Dithyrea californica | DICA7 | Brassicaceae | Dicot |
| California suncup | Camissonia californica | CACA32 | Onagraceae | Dicot |
| California valerian | Valeriana californica | VACA2 | Valerianaceae | Dicot |
| California waterwort | Elatine californica | ELCA | Elatinaceae | Dicot |
| California wavewing | Pteryxia terebinthina var. californica | PTTEC2 | Apiaceae | Dicot |
| Callaway milkvetch | Astragalus callithrix | ASCA8 | Fabaceae | Dicot |
| calthaleaf phacelia | Phacelia calthifolia | PHCA2 | Hydrophyllaceae | Dicot |
| caltrop | Kallstroemia | KALLS | Zygophyllaceae | Dicot |
| camas | Camassia | CAMAS | Liliaceae | Monocot |
| camelthorn | Alhagi maurorum | ALMA12 | Fabaceae | Dicot |
| camphorweed | Heterotheca subaxillaris | HESU3 | Asteraceae | Dicot |
| camphorweed | Pluchea | PLUCH | Asteraceae | Dicot |
| Canada bluegrass | Poa compressa | POCO | Poaceae | Monocot |
| Canada cocklebur | Xanthium strumarium var. canadense | XASTC | Asteraceae | Dicot |
| Canada germander | Teucrium canadense | TECA3 | Lamiaceae | Dicot |
| Canada goldenrod | Solidago canadensis | SOCA6 | Asteraceae | Dicot |
| Canada thistle | Cirsium arvense | CIAR4 | Asteraceae | Dicot |
| Canada wildrye | Elymus canadensis | ELCA4 | Poaceae | Monocot |
| Canadian gooseberry | Ribes oxyacanthoides | RIOX | Grossulariaceae | Dicot |
| Canadian horseweed | Conyza canadensis | COCA5 | Asteraceae | Dicot |
| Canadian horseweed | Conyza canadensis var. canadensis | COCAC3 | Asteraceae | Dicot |
| Canadian horseweed | Conyza canadensis var. glabrata | COCAG | Asteraceae | Dicot |
| Canadian milkvetch | Astragalus canadensis | ASCA11 | Fabaceae | Dicot |
| Canadian waterweed | Elodea canadensis | ELCA7 | Hydrocharitaceae | Monocot |
| canaigre dock | Rumex hymenosepalus | RUHY | Polygonaceae | Dicot |
| canary violet | Viola praemorsa | VIPR3 | Violaceae | Dicot |
| canarygrass | Phalaris | PHALA2 | Poaceae | Monocot |
| Canby"s aster | Symphyotrichum foliaceum var. canbyi | SYFOC | Asteraceae | Dicot |
| Canby"s biscuitroot | Lomatium canbyi | LOCA4 | Apiaceae | Dicot |
| Candelaria blazingstar | Mentzelia candelariae | MECA8 | Loasaceae | Dicot |
| candytuft | Smelowskia | SMELO | Brassicaceae | Dicot |
| cane bluestem | Bothriochloa barbinodis | BOBA3 | Poaceae | Monocot |
| cantaloupe | Cucumis melo | CUME | Cucurbitaceae | Dicot |
| canyon bird"s-foot trefoil | Lotus argyraeus | LOAR4 | Fabaceae | Dicot |
| canyon bird"s-foot trefoil | Lotus argyraeus var. multicaulis | LOARM | Fabaceae | Dicot |
| canyon grape | Vitis arizonica | VIAR2 | Vitaceae | Dicot |
| canyon live oak | Quercus chrysolepis | QUCH2 | Fagaceae | Dicot |
| canyon live oak | Quercus chrysolepis var. chrysolepis | QUCHC | Fagaceae | Dicot |
| capitate sedge | Carex capitata | CACA13 | Cyperaceae | Monocot |
| capitate sedge | Carex capitata ssp. arctogena | CACAA2 | Cyperaceae | Monocot |
| capitate sedge | Carex capitata ssp. capitata | CACAC7 | Cyperaceae | Monocot |
| capsella | Capsella | CAPSE | Brassicaceae | Dicot |
| cardinalflower | Lobelia cardinalis | LOCA2 | Campanulaceae | Dicot |
| carelessweed | Amaranthus palmeri | AMPA | Amaranthaceae | Dicot |
| carelessweed | Cyclachaena | CYCLA4 | Asteraceae | Dicot |
| Carelessweed | Cyclachaena xanthiifolia | CYXA2 | Asteraceae | Dicot |
| carnivorous silene | Silene nuda ssp. insectivora | SINUI2 | Caryophyllaceae | Dicot |
| Carolina canarygrass | Phalaris caroliniana | PHCA6 | Poaceae | Monocot |
| Carolina draba | Draba reptans | DRRE2 | Brassicaceae | Dicot |
| Carolina geranium | Geranium carolinianum | GECA5 | Geraniaceae | Dicot |
| Carolina geranium | Geranium carolinianum var. carolinianum | GECAC4 | Geraniaceae | Dicot |
| Carolina vervain | Verbena carolina | VECA10 | Verbenaceae | Dicot |
| carpet phlox | Phlox hoodii ssp. canescens | PHHOC | Polemoniaceae | Dicot |
| carpet phlox | Phlox hoodii ssp. lanata | PHHOL | Polemoniaceae | Dicot |
| carpetweed | Mollugo | MOLLU | Molluginaceae | Dicot |
| carrotleaf biscuitroot | Lomatium dissectum var. multifidum | LODIM | Apiaceae | Dicot |
| Carruth"s sagewort | Artemisia carruthii | ARCA14 | Asteraceae | Dicot |
| Carson Range rockcress | Arabis tiehmii | ARTI2 | Brassicaceae | Dicot |
| Carson Valley monkeyflower | Erythranthe carsonensis | ERCA9 | Scrophulariaceae | Dicot |
| carveseed | Glyptopleura marginata | GLMA2 | Asteraceae | Dicot |
| Cascade popcornflower | Plagiobothrys hispidus | PLHI3 | Boraginaceae | Dicot |
| Case"s milkvetch | Astragalus casei | ASCA14 | Fabaceae | Dicot |
| cat"s ear | Hypochaeris | HYPOC | Asteraceae | Dicot |
| catchfly | Silene | SILEN | Caryophyllaceae | Dicot |
| catchfly prairie gentian | Eustoma exaltatum | EUEX5 | Gentianaceae | Dicot |
| catchfly prairie gentian | Eustoma exaltatum ssp. exaltatum | EUEXE2 | Gentianaceae | Dicot |
| catclaw acacia | Acacia greggii | ACGR | Fabaceae | Dicot |
| catclaw acacia | Acacia greggii var. greggii | ACGRG3 | Fabaceae | Dicot |
| caterpillar phacelia | Phacelia cicutaria | PHCI | Hydrophyllaceae | Dicot |
| caterpillar phacelia | Phacelia cicutaria var. hispida | PHCIH2 | Hydrophyllaceae | Dicot |
| Cathedral Bluff dwarf gentian | Gentianella tortuosa | GETO | Gentianaceae | Dicot |
| catnip | Nepeta | NEPET | Lamiaceae | Dicot |
| catnip | Nepeta cataria | NECA2 | Lamiaceae | Dicot |
| cattail | Typha | TYPHA | Typhaceae | Monocot |
| cattle saltbush | Atriplex polycarpa | ATPO | Chenopodiaceae | Dicot |
| cavedwelling evening primrose | Oenothera cavernae | OECA5 | Onagraceae | Dicot |
| ceanothus | Ceanothus | CEANO | Rhamnaceae | Dicot |
| celery | Apium | APIUM | Apiaceae | Dicot |
| centaury | Centaurium | CENTA2 | Gentianaceae | Dicot |
| centrostegia | Centrostegia | CENTR4 | Polygonaceae | Dicot |
| cereal rye | Secale cereale | SECE | Poaceae | Monocot |
| chaffbush | Amphipappus | AMPHI3 | Asteraceae | Dicot |
| chainfern | Woodwardia | WOODW | Blechnaceae | Fern |
| chairmaker"s bulrush | Schoenoplectus americanus | SCAM6 | Cyperaceae | Monocot |
| chalk dudleya | Dudleya pulverulenta | DUPU | Crassulaceae | Dicot |
| chalk dudleya | Dudleya pulverulenta ssp. arizonica | DUPUA2 | Crassulaceae | Dicot |
| Chambers" twinpod | Physaria chambersii | PHCH2 | Brassicaceae | Dicot |
| chamise | Adenostoma | ADENO2 | Rosaceae | Dicot |
| chamise | Adenostoma fasciculatum | ADFA | Rosaceae | Dicot |
| chamise | Adenostoma fasciculatum var. fasciculatum | ADFAF | Rosaceae | Dicot |
| Chamisso arnica | Arnica chamissonis | ARCH3 | Asteraceae | Dicot |
| Chamisso arnica | Arnica chamissonis ssp. foliosa | ARCHF | Asteraceae | Dicot |
| Chamisso arnica | Arnica chamissonis ssp. foliosa var. andina | ARCHA2 | Asteraceae | Dicot |
| Chamisso arnica | Arnica chamissonis ssp. foliosa var. incana | ARCHI4 | Asteraceae | Dicot |
| chamisso sedge | Carex pachystachya | CAPA14 | Cyperaceae | Monocot |
| chamomile | Anthemis | ANTHE | Asteraceae | Dicot |
| changeable phacelia | Phacelia mutabilis | PHMU2 | Hydrophyllaceae | Dicot |
| changing forget-me-not | Myosotis discolor | MYDI | Boraginaceae | Dicot |
| chaparral dodder | Cuscuta californica | CUCA | Cuscutaceae | Dicot |
| chaparral dodder | Cuscuta californica var. breviflora | CUCAB | Cuscutaceae | Dicot |
| chaparral dodder | Cuscuta californica var. californica | CUCAC | Cuscutaceae | Dicot |
| chaparral nightshade | Solanum xanti | SOXA | Solanaceae | Dicot |
| chaparral nightshade | Solanum xanti var. montanum | SOXAM | Solanaceae | Dicot |
| chaparral willowherb | Epilobium minutum | EPMI | Onagraceae | Dicot |
| Charleston lousewort | Pedicularis semibarbata var. charlestonensis | PESEC | Scrophulariaceae | Dicot |
| Charleston Mountain angelica | Angelica scabrida | ANSC9 | Apiaceae | Dicot |
| Charleston Mountain draba | Draba paucifructa | DRPA8 | Brassicaceae | Dicot |
| Charleston Mountain goldenbush | Ericameria compacta | ERCO40 | Asteraceae | Dicot |
| Charleston Mountain kittentails | Synthyris ranunculina | SYRA2 | Scrophulariaceae | Dicot |
| Charleston Mountain pussytoes | Antennaria soliceps | ANSO2 | Asteraceae | Dicot |
| Charleston Mountain silverbush | Argythamnia cyanophylla | ARCY | Euphorbiaceae | Dicot |
| Charleston Mountain violet | Viola charlestonensis | VICH2 | Violaceae | Dicot |
| Charleston Peak mousetail | Ivesia cryptocaulis | IVCR | Rosaceae | Dicot |
| Charleston phacelia | Phacelia hastata var. charlestonensis | PHHAC2 | Hydrophyllaceae | Dicot |
| Charleston sandwort | Arenaria congesta var. charlestonensis | ARCOC2 | Caryophyllaceae | Dicot |
| charlock mustard | Sinapis arvensis | SIAR4 | Brassicaceae | Dicot |
| charming centaury | Centaurium venustum | CEVE3 | Gentianaceae | Dicot |
| charming centaury | Centaurium venustum ssp. venustum | CEVEV | Gentianaceae | Dicot |
| cheatgrass | Bromus tectorum | BRTE | Poaceae | Monocot |
| checkerbloom | Sidalcea | SIDAL | Malvaceae | Dicot |
| cheeseweed mallow | Malva parviflora | MAPA5 | Malvaceae | Dicot |
| chestnut rush | Juncus castaneus | JUCA6 | Juncaceae | Monocot |
| chestnut rush | Juncus castaneus ssp. castaneus | JUCAC2 | Juncaceae | Monocot |
| chestnut rush | Juncus castaneus ssp. castaneus var. castaneus | JUCAC6 | Juncaceae | Monocot |
| chia | Salvia columbariae | SACO6 | Lamiaceae | Dicot |
| chia | Salvia columbariae var. columbariae | SACOC | Lamiaceae | Dicot |
| chickensage | Sphaeromeria | SPHAE3 | Asteraceae | Dicot |
| chickpea milkvetch | Astragalus cicer | ASCI4 | Fabaceae | Dicot |
| chicory | Cichorium | CICHO | Asteraceae | Dicot |
| chicory | Cichorium intybus | CIIN | Asteraceae | Dicot |
| Chilean bird"s-foot trefoil | Lotus wrangelianus | LOWR2 | Fabaceae | Dicot |
| Chilean chess | Bromus berteroanus | BRBE6 | Poaceae | Monocot |
| Chilean rabbitsfoot grass | Polypogon australis | POAU3 | Poaceae | Monocot |
| chinchweed | Pectis | PECTI | Asteraceae | Dicot |
| Chinese caps | Euphorbia crenulata | EUCR2 | Euphorbiaceae | Dicot |
| Chinese elm | Ulmus parvifolia | ULPA | Ulmaceae | Dicot |
| Chinese lantern | Quincula lobata | QULO2 | Solanaceae | Dicot |
| Chinook brome | Bromus laevipes | BRLA3 | Poaceae | Monocot |
| chinquapin | Chrysolepis | CHRYS15 | Fagaceae | Dicot |
| chloracantha | Chloracantha | CHLOR6 | Asteraceae | Dicot |
| chokecherry | Prunus virginiana | PRVI | Rosaceae | Dicot |
| cholla | Grusonia | GRUSO | Cactaceae | Dicot |
| cholla | Cylindropuntia | CYLIN2 | Cactaceae | Dicot |
| cholla | Cylindropuntia ×deserta | CYDE17 | Cactaceae | Dicot |
| chorispora | Chorispora | CHORI | Brassicaceae | Dicot |
| chuckwalla combseed | Pectocarya heterocarpa | PEHE | Boraginaceae | Dicot |
| Churchill Narrows buckwheat | Eriogonum diatomaceum | ERDI18 | Polygonaceae | Dicot |
| cima milkvetch | Astragalus cimae | ASCI3 | Fabaceae | Dicot |
| cima milkvetch | Astragalus cimae var. cimae | ASCIC3 | Fabaceae | Dicot |
| cinquefoil | Potentilla | POTEN | Rosaceae | Dicot |
| clammy goosefoot | Dysphania pumilio | DYPU | Chenopodiaceae | Dicot |
| clammy hedgehyssop | Gratiola neglecta | GRNE | Scrophulariaceae | Dicot |
| clammyweed | Polanisia | POLAN | Capparaceae | Dicot |
| Clark Mountain buckwheat | Eriogonum heermannii var. floccosum | ERHEF | Polygonaceae | Dicot |
| clarkia | Clarkia | CLARK | Onagraceae | Dicot |
| clasping arnica | Arnica amplexicaulis | ARAM2 | Asteraceae | Dicot |
| clasping pepperweed | Lepidium perfoliatum | LEPE2 | Brassicaceae | Dicot |
| Clearwater cryptantha | Cryptantha intermedia | CRIN8 | Boraginaceae | Dicot |
| cleft sedge | Carex fissuricola | CAFI2 | Cyperaceae | Monocot |
| cleftleaf wildheliotrope | Phacelia crenulata var. corrugata | PHCRC | Hydrophyllaceae | Dicot |
| cleftleaf wildheliotrope | Phacelia crenulata var. crenulata | PHCRC3 | Hydrophyllaceae | Dicot |
| cleftleaf wildheliotrope | Phacelia crenulata | PHCR | Hydrophyllaceae | Dicot |
| cliff fendlerbush | Fendlera rupicola | FERU | Hydrangeaceae | Dicot |
| cliff fern | Woodsia | WOODS | Dryopteridaceae | Fern |
| cliff goldenbush | Ericameria cuneata | ERCU7 | Asteraceae | Dicot |
| cliff goldenbush | Ericameria cuneata var. spathulata | ERCUS | Asteraceae | Dicot |
| cliffbrake | Pellaea | PELLA | Pteridaceae | Fern |
| cliffbush | Jamesia | JAMES | Hydrangeaceae | Dicot |
| climbing nightshade | Solanum dulcamara | SODU | Solanaceae | Dicot |
| climbing nightshade | Solanum dulcamara var. dulcamara | SODUD | Solanaceae | Dicot |
| cloakfern | Astrolepis | ASTRO | Pteridaceae | Fern |
| Clokey"s buckwheat | Eriogonum heermannii var. clokeyi | ERHEC | Polygonaceae | Dicot |
| Clokey"s catchfly | Silene clokeyi | SICL | Caryophyllaceae | Dicot |
| Clokey"s fleabane | Erigeron clokeyi | ERCL | Asteraceae | Dicot |
| Clokey"s gilia | Gilia clokeyi | GICL2 | Polemoniaceae | Dicot |
| Clokey"s greasebush | Glossopetalon clokeyi | GLCL | Crossosomataceae | Dicot |
| Clokey"s milkvetch | Astragalus aequalis | ASAE | Fabaceae | Dicot |
| closedhead sedge | Carex norvegica ssp. inferalpina | CANOI | Cyperaceae | Monocot |
| cloud sedge | Carex haydeniana | CAHA6 | Cyperaceae | Monocot |
| clover | Trifolium | TRIFO | Fabaceae | Dicot |
| clover dodder | Cuscuta epithymum | CUEP | Cuscutaceae | Dicot |
| club spikemoss | Selaginella selaginoides | SESE | Selaginellaceae | Lycopod |
| clubmoss mousetail | Ivesia lycopodioides | IVLY | Rosaceae | Dicot |
| clubmoss mousetail | Ivesia lycopodioides ssp. lycopodioides | IVLYL | Rosaceae | Dicot |
| clustered broomrape | Orobanche fasciculata | ORFA | Orobanchaceae | Dicot |
| clustered dock | Rumex conglomeratus | RUCO2 | Polygonaceae | Dicot |
| clustered field sedge | Carex praegracilis | CAPR5 | Cyperaceae | Monocot |
| clustered goldenweed | Pyrrocoma racemosa | PYRA | Asteraceae | Dicot |
| clustered goldenweed | Pyrrocoma racemosa var. paniculata | PYRAP2 | Asteraceae | Dicot |
| clustered goldenweed | Pyrrocoma racemosa var. sessiliflora | PYRAS | Asteraceae | Dicot |
| clustered popcornflower | Plagiobothrys glomeratus | PLGL4 | Boraginaceae | Dicot |
| coastal bird"s-foot trefoil | Lotus salsuginosus | LOSA | Fabaceae | Dicot |
| coastal bird"s-foot trefoil | Lotus salsuginosus var. brevivexillus | LOSAB | Fabaceae | Dicot |
| coastal sandbur | Cenchrus spinifex | CESP4 | Poaceae | Monocot |
| cobwebby Indian paintbrush | Castilleja arachnoidea | CAAR11 | Scrophulariaceae | Dicot |
| cobwebby thistle | Cirsium occidentale | CIOC | Asteraceae | Dicot |
| cocklebur | Xanthium | XANTH2 | Asteraceae | Dicot |
| cockspur grass | Echinochloa | ECHIN4 | Poaceae | Monocot |
| cold-desert phlox | Phlox stansburyi | PHST11 | Polemoniaceae | Dicot |
| cold-desert phlox | Phlox stansburyi ssp. stansburyi | PHSTS3 | Polemoniaceae | Dicot |
| cold-desert phlox | Phlox stansburyi ssp. superba | PHSTS4 | Polemoniaceae | Dicot |
| coleogyne | Coleogyne | COLEO | Rosaceae | Dicot |
| colonial bentgrass | Agrostis capillaris | AGCA5 | Poaceae | Monocot |
| Colorado blue columbine | Aquilegia coerulea | AQCO | Ranunculaceae | Dicot |
| Colorado blue columbine | Aquilegia coerulea var. pinetorum | AQCOP | Ranunculaceae | Dicot |
| Colorado buckhorn cholla | Cylindropuntia acanthocarpa var. coloradensis | CYACC2 | Cactaceae | Dicot |
| Colorado fescue | Festuca brachyphylla ssp. coloradensis | FEBRC | Poaceae | Monocot |
| Colorado feverfew | Parthenium ligulatum | PALI6 | Asteraceae | Dicot |
| Colorado four o"clock | Mirabilis multiflora | MIMU | Nyctaginaceae | Dicot |