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 1,201–1,250 of 9,954.

• ⚘
  Balsamorhiza ×terebinthacea (Hook.) Nutt. (pro sp.) [deltoidea × hookeri] Native BATE3

  balsamroot · Asteraceae 2 counties
• 
  Barbarea orthoceras Ledeb. Native BAOR

  American yellowrocket · Brassicaceae 45 counties
• 
  Barbarea verna (Mill.) Asch. Introduced BAVE

  early yellowrocket · Brassicaceae 13 counties
• 
  Barbarea vulgaris W.T. Aiton Introduced BAVU

  garden yellowrocket · Brassicaceae 9 counties
• 
  Bassia americana (S. Watson) A.J. Scott Native BAAM4

  green molly · Chenopodiaceae 5 counties
• 
  Bassia californica (S. Watson) A.J. Scott Native BACA21

  rusty molly · Chenopodiaceae 7 counties
• 
  Bassia hyssopifolia (Pall.) Kuntz Introduced BAHY

  fivehorn smotherweed · Chenopodiaceae 30 counties
• 
  Bassia scoparia (L.) A.J. Scott Introduced BASC5

  burningbush · Chenopodiaceae 15 counties
• 
  Batis maritima L. Native BAMA5

  turtleweed · Bataceae 4 counties
• 
  Bebbia juncea (Benth.) Greene Native BEJU

  sweetbush · Asteraceae 8 counties
• 
  Bebbia juncea (Benth.) Greene var. aspera Native BEJUA

  sweetbush · Asteraceae 8 counties
• 
  Beckmannia syzigachne (Steud.) Fernald Native BESY

  American sloughgrass · Poaceae 19 counties
• 
  Bellardia trixago (L.) All. Introduced BETR

  Mediterranean lineseed · Scrophulariaceae 11 counties
• 
  Bellis perennis L. Introduced BEPE2

  lawndaisy · Asteraceae 15 counties
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  Benitoa occidentalis (H.M. Hall) D.D. Keck Native BEOC

  benitoa · Asteraceae 3 counties
• 
  Bensoniella oregona (Abrams & Bacig.) Morton Native BEOR

  Oregon bensoniella · Saxifragaceae 1 county
• 
  Berberis darwinii Hook. Introduced BEDA

  Darwin's berberis · Berberidaceae 1 county
• 
  Bergerocactus emoryi (Engelm.) Britton & Rose Native BEEM

  golden snakecactus · Cactaceae 2 counties
• 
  Bergia texana (Hook.) Seub. ex Walp. Native BETE

  Texas bergia · Elatinaceae 11 counties
• 
  Bernardia myricifolia (Scheele) S. Watson Native BEMY

  mouse's eye · Euphorbiaceae 3 counties
• 
  Berula erecta (Huds.) Coville Native BEER

  cutleaf waterparsnip · Apiaceae 29 counties
• 
  Beta vulgaris L. Introduced BEVU2

  common beet · Chenopodiaceae 22 counties
• 
  Betula glandulosa Michx. Native BEGL

  resin birch · Betulaceae 6 counties
• 
  Betula occidentalis Hook. Native BEOC2

  water birch · Betulaceae 13 counties
• 
  Betula pumila L. Native BEPU4

  bog birch · Betulaceae 6 counties
• 
  Betula pumila L. var. glandulifera Regel Native BEPUG

  bog birch · Betulaceae 6 counties
• 
  Bidens cernua L. Native BICE

  nodding beggartick · Asteraceae 14 counties
• 
  Bidens frondosa L. Native BIFR

  devil's beggartick · Asteraceae 29 counties
• 
  Bidens laevis (L.) Britton, Sterns & Poggenb. Native BILA

  smooth beggartick · Asteraceae 24 counties
• 
  Bidens pilosa L. Introduced BIPI

  hairy beggarticks · Asteraceae 11 counties
• 
  Bidens tripartita L. Native BITR

  threelobe beggarticks · Asteraceae 2 counties
• 
  Bidens vulgata Greene Native BIVU

  big devils beggartick · Asteraceae 2 counties
• 
  Bituminaria bituminosa (L.) Stirt. Introduced BIBI4

  Arabian pea · Fabaceae 1 county
• 
  Blechnum spicant (L.) Sm. Native BLSP

  deer fern · Blechnaceae 8 counties
• 
  Blennosperma bakeri Heiser Native BLBA

  Baker's stickyseed · Asteraceae 1 county
• 
  Blennosperma nanum (Hook.) S.F. Blake Native BLNA

  common stickyseed · Asteraceae 36 counties
• 
  Blennosperma nanum (Hook.) S.F. Blake var. nanum Native BLNAN

  common stickyseed · Asteraceae 36 counties
• 
  Blennosperma nanum (Hook.) S.F. Blake var. robustum J.T. Howell Native BLNAR

  common stickyseed · Asteraceae 2 counties
• 
  Blepharidachne kingii (S. Watson) Hack. Native BLKI

  King's eyelashgrass · Poaceae 2 counties
• 
  Blepharipappus scaber Hook. Native BLSC

  rough eyelashweed · Asteraceae 8 counties
• 
  Blepharipappus scaber Hook. ssp. laevis (A. Gray) D.D. Keck Native BLSCL

  rough eyelashweed · Asteraceae 1 county
• 
  Blepharipappus scaber Hook. ssp. scaber Native BLSCS

  rough eyelashweed · Asteraceae 8 counties
• 
  Blepharizonia laxa Greene Native BLLA4

  blepharizonia · Asteraceae 11 counties
• 
  Blepharizonia plumosa (Kellogg) Greene Native BLPL

  big tarweed · Asteraceae 13 counties
• 
  Blepharizonia plumosa (Kellogg) Greene ssp. plumosa Native BLPLP

  big tarweed · Asteraceae 5 counties
• 
  Blepharizonia plumosa (Kellogg) Greene ssp. viscida D.D. Keck Native BLPLV

  big tarweed · Asteraceae 12 counties
• 
  Bloomeria crocea (Torr.) Coville Native BLCR

  common goldenstar · Liliaceae 13 counties
• 
  Bloomeria crocea (Torr.) Coville var. aurea (Kellogg) J.W. Ingram Native BLCRA

  common goldenstar · Liliaceae 3 counties
• 
  Bloomeria crocea (Torr.) Coville var. crocea Native BLCRC

  common goldenstar · Liliaceae 9 counties
• 
  Bloomeria crocea (Torr.) Coville var. montana (Greene) J.W. Ingram Native BLCRM

  common goldenstar · Liliaceae 3 counties