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 2,351–2,400 of 8,499 (native).

• 
  Corydalis caseana A. Gray Native COCA15

  Sierra fumewort · Fumariaceae 6 counties
• 
  Corydalis caseana A. Gray ssp. caseana Native COCAC7

  Sierra fumewort · Fumariaceae 6 counties
• 
  Corylus cornuta Marshall Native COCO6

  beaked hazelnut · Betulaceae 35 counties
• 
  Corylus cornuta Marshall var. californica (A. DC.) Sharp Native COCOC

  California hazelnut · Betulaceae 35 counties
• 
  Crassula aquatica (L.) Schoenl. Native CRAQ

  water pygmyweed · Crassulaceae 35 counties
• 
  Crassula connata (Ruiz & Pav.) A. Berger Native CRCO34

  sand pygmyweed · Crassulaceae 37 counties
• 
  Crassula connata (Ruiz & Pav.) A. Berger var. connata Native CRCOC

  sand pygmyweed · Crassulaceae 13 counties
• 
  Crassula connata (Ruiz & Pav.) A. Berger var. erectoides Bywater & Wickens Native CRCOE

  sand pygmyweed · Crassulaceae 18 counties
• 
  Crassula connata (Ruiz & Pav.) A. Berger var. eremica (Jeps.) Bywater & Wickens Native CRCOE2

  sand pygmyweed · Crassulaceae 16 counties
• 
  Crassula connata (Ruiz & Pav.) A. Berger var. subsimplex (S. Watson) Bywater & Wickens Native CRCOS

  sand pygmyweed · Crassulaceae 16 counties
• 
  Crassula saginoides (Maxim.) Bywater & Wickens Native CRSA7

  wrinkleseed pygmyweed · Crassulaceae 2 counties
• 
  Crassula solieri (Gay) F. Meigen Native CRSO5

  Smooth-Seed Pygmyweed · Crassulaceae 6 counties
• 
  Crataegus douglasii Lindl. Native CRDO2

  black hawthorn · Rosaceae 10 counties
• 
  Crataegus suksdorfii (Sarg.) Kruschke Native CRSU16

  Suksdorf's hawthorn · Rosaceae 12 counties
• 
  Crepis acuminata Nutt. Native CRAC2

  tapertip hawksbeard · Asteraceae 27 counties
• 
  Crepis acuminata Nutt. ssp. acuminata Native CRACA

  tapertip hawksbeard · Asteraceae 27 counties
• 
  Crepis atribarba A. Heller Native CRAT

  slender hawksbeard · Asteraceae 1 county
• 
  Crepis bakeri Greene Native CRBA2

  Baker's hawksbeard · Asteraceae 10 counties
• 
  Crepis bakeri Greene ssp. bakeri Native CRBAB

  Baker's hawksbeard · Asteraceae 5 counties
• 
  Crepis bakeri Greene ssp. cusickii (Eastw.) Babc. & Stebbins Native CRBAC

  Cusick's hawksbeard · Asteraceae 4 counties
• 
  Crepis intermedia A. Gray Native CRIN4

  limestone hawksbeard · Asteraceae 19 counties
• 
  Crepis modocensis Greene Native CRMO4

  Modoc hawksbeard · Asteraceae 13 counties
• 
  Crepis modocensis Greene ssp. modocensis Native CRMOM

  Modoc hawksbeard · Asteraceae 11 counties
• 
  Crepis modocensis Greene ssp. subacaulis (Kellogg) Babc. & Stebbins Native CRMOS

  Modoc hawksbeard · Asteraceae 11 counties
• 
  Crepis monticola Coville Native CRMO5

  mountain hawksbeard · Asteraceae 16 counties
• 
  Crepis nana Richardson Native CRNA

  dwarf alpine hawksbeard · Asteraceae 7 counties
• 
  Crepis nana Richardson ssp. nana Native CRNAN

  dwarf alpine hawksbeard · Asteraceae 2 counties
• 
  Crepis nana Richardson ssp. ramosa Babc. Native CRNAR

  dwarf alpine hawksbeard · Asteraceae 5 counties
• 
  Crepis occidentalis Nutt. Native CROC

  largeflower hawksbeard · Asteraceae 31 counties
• 
  Crepis occidentalis Nutt. ssp. conjuncta (Jeps.) Babc. & Stebbins Native CROCC

  largeflower hawksbeard · Asteraceae 4 counties
• 
  Crepis occidentalis Nutt. ssp. costata (A. Gray) Babc. & Stebbins Native CROCC2

  largeflower hawksbeard · Asteraceae 3 counties
• 
  Crepis occidentalis Nutt. ssp. occidentalis Native CROCO2

  largeflower hawksbeard · Asteraceae 3 counties
• 
  Crepis occidentalis Nutt. ssp. pumila (Rydb.) Babc. & Stebbins Native CROCP

  largeflower hawksbeard · Asteraceae 3 counties
• 
  Crepis pleurocarpa A. Gray Native CRPL

  nakedstem hawksbeard · Asteraceae 16 counties
• 
  Crepis runcinata (James) Torr. & A. Gray Native CRRU3

  fiddleleaf hawksbeard · Asteraceae 6 counties
• 
  Crepis runcinata (James) Torr. & A. Gray ssp. andersonii (A. Gray) Babc. & Stebbins Native CRRUA

  Anderson's hawksbeard · Asteraceae 2 counties
• 
  Crepis runcinata (James) Torr. & A. Gray ssp. hallii Babc. & Stebbins Native CRRUH

  Hall's hawksbeard · Asteraceae 3 counties
• 
  Crepis runcinata (James) Torr. & A. Gray ssp. hispidulosa (Howell ex Rydb.) Babc. & Stebbins Native CRRUH2

  fiddleleaf hawksbeard · Asteraceae 1 county
• 
  Crepis runcinata (James) Torr. & A. Gray ssp. imbricata Babc. & Stebbins Native CRRUI

  fiddleleaf hawksbeard · Asteraceae 3 counties
• 
  Cressa truxillensis Kunth Native CRTR5

  spreading alkaliweed · Convolvulaceae 33 counties
• 
  Crocidium multicaule Hook. Native CRMU

  common spring-gold · Asteraceae 20 counties
• 
  Crossosoma bigelovii S. Watson Native CRBI2

  ragged rockflower · Crossosomataceae 5 counties
• 
  Crossosoma bigelovii S. Watson var. bigelovii Native CRBIB

  ragged rockflower · Crossosomataceae 5 counties
• 
  Crossosoma californicum Nutt. Native CRCA4

  California rockflower · Crossosomataceae 1 county
• 
  Croton californicus Müll. Arg. Native CRCA5

  California croton · Euphorbiaceae 15 counties
• 
  Croton californicus Müll. Arg. var. californicus Native CRCAC

  California croton · Euphorbiaceae 15 counties
• 
  Croton californicus Müll. Arg. var. tenuis (S. Watson) A.M. Ferguson Native CRCAT

  California croton · Euphorbiaceae 9 counties
• 
  Croton setigerus Hook. Native CRSE11

  dove weed · Euphorbiaceae 49 counties
• 
  Croton wigginsii L.C. Wheeler Native CRWI2

  Wiggins' croton · Euphorbiaceae 1 county
• 
  Cryptantha affinis (A. Gray) Greene Native CRAF

  quill cryptantha · Boraginaceae 34 counties