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 2,301–2,350 of 9,954.

• 
  Chorizanthe biloba Goodman var. biloba Native CHBIB

  twolobe spineflower · Polygonaceae 3 counties
• 
  Chorizanthe biloba Goodman var. immemora Reveal & Hardham Native CHBII

  San Benito spineflower · Polygonaceae 3 counties
• 
  Chorizanthe blakleyi Hardham Native CHBL

  Blakley's spineflower · Polygonaceae 2 counties
• 
  Chorizanthe brevicornu Torr. Native CHBR

  brittle spineflower · Polygonaceae 10 counties
• 
  Chorizanthe brevicornu Torr. var. brevicornu Native CHBRB

  brittle spineflower · Polygonaceae 9 counties
• 
  Chorizanthe brevicornu Torr. var. spathulata (Small ex Rydb.) C.L. Hitchc. Native CHBRS

  brittle spineflower · Polygonaceae 3 counties
• 
  Chorizanthe breweri S. Watson Native CHBR2

  San Luis Obispo spineflower · Polygonaceae 2 counties
• 
  Chorizanthe clevelandii Parry Native CHCL2

  Cleveland's spineflower · Polygonaceae 9 counties
• 
  Chorizanthe corrugata (Torr.) Torr. & A. Gray Native CHCO6

  wrinkled spineflower · Polygonaceae 5 counties
• 
  Chorizanthe cuspidata S. Watson Native CHCU3

  San Francisco spineflower · Polygonaceae 6 counties
• 
  Chorizanthe cuspidata S. Watson var. cuspidata Native CHCUC

  San Francisco spineflower · Polygonaceae 6 counties
• 
  Chorizanthe cuspidata S. Watson var. villosa (Eastw.) Munz Native CHCUV

  San Francisco spineflower · Polygonaceae 2 counties
• 
  Chorizanthe diffusa Benth. Native CHDI3

  diffuse spineflower · Polygonaceae 5 counties
• 
  Chorizanthe douglasii Benth. Native CHDO2

  Douglas' spineflower · Polygonaceae 4 counties
• 
  Chorizanthe fimbriata Nutt. Native CHFI2

  fringed spineflower · Polygonaceae 4 counties
• 
  Chorizanthe fimbriata Nutt. var. fimbriata Native CHFIF

  fringed spineflower · Polygonaceae 3 counties
• 
  Chorizanthe fimbriata Nutt. var. laciniata (Torr.) Jeps. Native CHFIL

  fringed spineflower · Polygonaceae 2 counties
• 
  Chorizanthe howellii Goodman Native CHHO2

  Mendocino spineflower · Polygonaceae 1 county
• 
  Chorizanthe leptotheca Goodman Native CHLE6

  Ramona spineflower · Polygonaceae 4 counties
• 
  Chorizanthe membranacea Benth. Native CHME2

  pink spineflower · Polygonaceae 38 counties
• 
  Chorizanthe obovata Goodman Native CHOB4

  spoonsepal spineflower · Polygonaceae 3 counties
• 
  Chorizanthe orcuttiana Parry Native CHOR

  San Diego spineflower · Polygonaceae 1 county
• 
  Chorizanthe palmeri S. Watson Native CHPA8

  Palmer's spineflower · Polygonaceae 4 counties
• 
  Chorizanthe parryi S. Watson Native CHPA9

  San Bernardino spineflower · Polygonaceae 5 counties
• 
  Chorizanthe parryi S. Watson var. fernandina (S. Watson) Jeps. Native CHPAF

  San Fernando Valley spineflower · Polygonaceae 3 counties
• 
  Chorizanthe parryi S. Watson var. parryi Native CHPAP2

  San Bernardino spineflower · Polygonaceae 3 counties
• 
  Chorizanthe polygonoides Torr. & A. Gray Native CHPO4

  knotweed spineflower · Polygonaceae 22 counties
• 
  Chorizanthe polygonoides Torr. & A. Gray var. longispina (Goodman) Munz Native CHPOL

  knotweed spineflower · Polygonaceae 2 counties
• 
  Chorizanthe polygonoides Torr. & A. Gray var. polygonoides Native CHPOP5

  knotweed spineflower · Polygonaceae 20 counties
• 
  Chorizanthe procumbens Nutt. Native CHPR4

  prostrate spineflower · Polygonaceae 6 counties
• 
  Chorizanthe pungens Benth. Native CHPU3

  Monterey spineflower · Polygonaceae 3 counties
• 
  Chorizanthe pungens Benth. var. hartwegiana Reveal & Hardham Native CHPUH2

  Hartweg's spineflower · Polygonaceae 1 county
• 
  Chorizanthe pungens Benth. var. pungens Native CHPUP3

  Monterey spineflower · Polygonaceae 3 counties
• 
  Chorizanthe rectispina Goodman Native CHRE

  prickly spineflower · Polygonaceae 3 counties
• 
  Chorizanthe rigida (Torr.) Torr. & A. Gray Native CHRI

  devil's spineflower · Polygonaceae 7 counties
• 
  Chorizanthe robusta Parry Native CHRO

  robust spineflower · Polygonaceae 6 counties
• 
  Chorizanthe robusta Parry var. hartwegii (Benth.) Reveal & R. Morgan Native CHROH

  robust spineflower · Polygonaceae 2 counties
• 
  Chorizanthe robusta Parry var. robusta Native CHROR

  robust spineflower · Polygonaceae 6 counties
• 
  Chorizanthe spinosa S. Watson Native CHSP

  Mojave spineflower · Polygonaceae 4 counties
• 
  Chorizanthe staticoides Benth. Native CHST4

  turkish rugging · Polygonaceae 9 counties
• 
  Chorizanthe stellulata Benth. Native CHST5

  starlet spineflower · Polygonaceae 15 counties
• 
  Chorizanthe uniaristata Torr. & A. Gray Native CHUN

  oneawn spineflower · Polygonaceae 11 counties
• 
  Chorizanthe valida S. Watson Native CHVA

  Sonoma spineflower · Polygonaceae 2 counties
• 
  Chorizanthe ventricosa Goodman Native CHVE3

  Priest Valley spineflower · Polygonaceae 4 counties
• 
  Chorizanthe watsonii Torr. & A. Gray Native CHWA2

  fivetooth spineflower · Polygonaceae 13 counties
• 
  Chorizanthe wheeleri S. Watson Native CHWH2

  Santa Barbara spineflower · Polygonaceae 1 county
• 
  Chorizanthe xanti S. Watson Native CHXA2

  Riverside spineflower · Polygonaceae 15 counties
• 
  Chorizanthe xanti S. Watson var. leucotheca Goodman Native CHXAL

  Riverside spineflower · Polygonaceae 3 counties
• 
  Chorizanthe xanti S. Watson var. xanti Native CHXAX

  Riverside spineflower · Polygonaceae 14 counties
• ⚘
  Chrysanthemum ×morifolium Ramat. (pro sp.) Introduced CHMO14

  florist's daisy · Asteraceae 1 county