California

• Alameda 06001
  1,856 taxa Open ↗
• Alpine 06003
  1,174 taxa Open ↗
• Amador 06005
  1,226 taxa Open ↗
• Butte 06007
  2,704 taxa Open ↗
• Calaveras 06009
  1,227 taxa Open ↗
• Colusa 06011
  1,330 taxa Open ↗
• Contra Costa 06013
  1,712 taxa Open ↗
• Del Norte 06015
  1,424 taxa Open ↗
• El Dorado 06017
  1,950 taxa Open ↗
• Fresno 06019
  2,373 taxa Open ↗

Showing 1,251–1,300 of 9,954.

• 
  Bloomeria humilis Hoover Native BLHU

  dwarf goldenstar · Liliaceae 2 counties
• 
  Boehmeria cylindrica (L.) Sw. Native BOCY

  smallspike false nettle · Urticaceae 3 counties
• 
  Boehmeria nivea (L.) Gaudich. Introduced BONI2

  Chinese grass · Urticaceae 30 counties
• 
  Boerhavia coccinea Mill. Native BOCO

  scarlet spiderling · Nyctaginaceae 4 counties
• 
  Boerhavia coulteri (Hook. f.) S. Watson Native BOCO2

  Coulter's spiderling · Nyctaginaceae 3 counties
• 
  Boerhavia diffusa L. Native BODI3

  red spiderling · Nyctaginaceae 1 county
• ⚘
  Boerhavia intermedia M.E. Jones Native BOIN

  fivewing spiderling · Nyctaginaceae 3 counties
• 
  Boerhavia triquetra S. Watson Native BOTR

  slender spiderling · Nyctaginaceae 4 counties
• 
  Boerhavia wrightii A. Gray Native BOWR

  largebract spiderling · Nyctaginaceae 5 counties
• 
  Bolandra californica A. Gray Native BOCA

  Sierra false coolwort · Saxifragaceae 7 counties
• 
  Bolboschoenus fluviatilis (Torr.) Soják Native BOFL3

  river bulrush · Cyperaceae 15 counties
• 
  Bolboschoenus glaucus (Lam.) S.G. Sm. Introduced BOGL9

  tuberous bulrush · Cyperaceae 5 counties
• 
  Bolboschoenus maritimus (L.) Palla Native BOMA7

  cosmopolitan bulrush · Cyperaceae 39 counties
• 
  Bolboschoenus robustus (Pursh) Soják Native BORO5

  sturdy bulrush · Cyperaceae 21 counties
• 
  Borago officinalis L. Introduced BOOF

  common borage · Boraginaceae 12 counties
• 
  Boschniakia hookeri Walp. Native BOHO

  Vancouver groundcone · Orobanchaceae 4 counties
• 
  Boschniakia strobilacea A. Gray Native BOST2

  California groundcone · Orobanchaceae 25 counties
• 
  Bothriochloa barbinodis (Lag.) Herter Native BOBA3

  cane bluestem · Poaceae 6 counties
• 
  Bothriochloa ischaemum (L.) Keng Introduced BOIS

  yellow bluestem · Poaceae 1 county
• 
  Bothriochloa ischaemum (L.) Keng var. songarica (Rupr. ex Fisch. & C.A. Mey.) Celarier & Harlan Introduced BOISS

  yellow bluestem · Poaceae 1 county
• 
  Bothriochloa laguroides (DC.) Herter Both BOLA2

  silver beardgrass · Poaceae 2 counties
• 
  Bothriochloa laguroides (DC.) Herter ssp. torreyana (Steud.) Allred & Gould Native BOLAT

  silver beardgrass · Poaceae 2 counties
• 
  Botrychium ascendens W.H. Wagner Native BOAS2

  trianglelobe moonwort · Ophioglossaceae 4 counties
• 
  Botrychium crenulatum W.H. Wagner Native BOCR

  scalloped moonwort · Ophioglossaceae 12 counties
• 
  Botrychium lineare W.H. Wagner Native BOLI7

  narrowleaf grapefern · Ophioglossaceae 1 county
• 
  Botrychium lunaria (L.) Sw. Native BOLU

  common moonwort · Ophioglossaceae 4 counties
• 
  Botrychium minganense Victorin Native BOMI

  Mingan moonwort · Ophioglossaceae 5 counties
• 
  Botrychium montanum W.H. Wagner Native BOMO

  mountain moonwort · Ophioglossaceae 3 counties
• 
  Botrychium multifidum (S.G. Gmel.) Trevis. Native BOMU

  leathery grapefern · Ophioglossaceae 23 counties
• 
  Botrychium pinnatum H. St. John Native BOPI

  northern moonwort · Ophioglossaceae 1 county
• 
  Botrychium pumicola Coville ex Underw. Native BOPU2

  Crater Lake grapefern · Ophioglossaceae 1 county
• 
  Botrychium simplex E. Hitchc. Native BOSI

  little grapefern · Ophioglossaceae 17 counties
• 
  Botrychium virginianum (L.) Sw. Native BOVI

  rattlesnake fern · Ophioglossaceae 1 county
• 
  Bouteloua aristidoides (Kunth) Griseb. Native BOAR

  needle grama · Poaceae 4 counties
• 
  Bouteloua aristidoides (Kunth) Griseb. var. aristidoides Native BOARA

  needle grama · Poaceae 4 counties
• 
  Bouteloua barbata Lag. Native BOBA2

  sixweeks grama · Poaceae 6 counties
• 
  Bouteloua curtipendula (Michx.) Torr. Native BOCU

  sideoats grama · Poaceae 3 counties
• 
  Bouteloua curtipendula (Michx.) Torr. var. caespitosa Gould & Kapadia Native BOCUC

  sideoats grama · Poaceae 3 counties
• 
  Bouteloua eriopoda (Torr.) Torr. Native BOER4

  black grama · Poaceae 1 county
• 
  Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths Native BOGR2

  blue grama · Poaceae 2 counties
• 
  Bouteloua trifida Thurb. Native BOTR2

  red grama · Poaceae 2 counties
• 
  Bouteloua trifida Thurb. var. trifida Native BOTRT

  red grama · Poaceae 2 counties
• 
  Bowlesia incana Ruiz & Pav. Native BOIN3

  hoary bowlesia · Apiaceae 27 counties
• 
  Boykinia major A. Gray Native BOMA3

  large boykinia · Saxifragaceae 14 counties
• 
  Boykinia occidentalis Torr. & A. Gray Native BOOC2

  coastal brookfoam · Saxifragaceae 26 counties
• 
  Boykinia rotundifolia Parry Native BORO3

  roundleaf brookfoam · Saxifragaceae 6 counties
• 
  Brachypodium distachyon (L.) P. Beauv. Introduced BRDI2

  purple false brome · Poaceae 23 counties
• 
  Brachypodium phoenicoides (L.) Roem. & Schult. Introduced BRPH3

  thinleaf false brome · Poaceae 1 county
• 
  Brachypodium pinnatum (L.) P. Beauv. Introduced BRPI

  heath false brome · Poaceae 2 counties
• 
  Brandegea bigelovii (S. Watson) Cogn. Native BRBI

  desert starvine · Cucurbitaceae 3 counties