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 1,751–1,800 of 8,499 (native).

• 
  Ceanothus ferrisiae McMinn Native CEFE2

  Coyote ceanothus · Rhamnaceae 1 county
• 
  Ceanothus foliosus Parry Native CEFO

  wavyleaf ceanothus · Rhamnaceae 11 counties
• 
  Ceanothus foliosus Parry var. foliosus Native CEFOF3

  wavyleaf ceanothus · Rhamnaceae 8 counties
• 
  Ceanothus foliosus Parry var. medius McMinn Native CEFOM

  wavyleaf buckbrush · Rhamnaceae 4 counties
• 
  Ceanothus foliosus Parry var. vineatus McMinn Native CEFOV

  Vine Hill ceanothus · Rhamnaceae 2 counties
• 
  Ceanothus fresnensis Dudley ex Abrams Native CEFR

  Fresno mat · Rhamnaceae 6 counties
• 
  Ceanothus gloriosus J.T. Howell Native CEGL

  Point Reyes ceanothus · Rhamnaceae 3 counties
• 
  Ceanothus gloriosus J.T. Howell var. exaltatus Native CEGLE

  Point Reyes ceanothus · Rhamnaceae 3 counties
• 
  Ceanothus gloriosus J.T. Howell var. gloriosus Native CEGLG3

  Point Reyes ceanothus · Rhamnaceae 3 counties
• 
  Ceanothus gloriosus J.T. Howell var. porrectus Native CEGLP

  Mt. Vision ceanothus · Rhamnaceae 1 county
• 
  Ceanothus greggii A. Gray Native CEGR

  desert ceanothus · Rhamnaceae 12 counties
• 
  Ceanothus greggii A. Gray var. perplexans (Trel.) Jeps. Native CEGRP

  desert ceanothus · Rhamnaceae 7 counties
• 
  Ceanothus greggii A. Gray var. vestitus (Greene) McMinn Native CEGRV

  Mojave ceanothus · Rhamnaceae 10 counties
• 
  Ceanothus griseus (Trel.) McMinn Native CEGR2

  Carmel ceanothus · Rhamnaceae 8 counties
• 
  Ceanothus hearstiorum Hoover & J.B. Roof Native CEHE2

  Hearst Ranch buckbrush · Rhamnaceae 1 county
• 
  Ceanothus impressus Trel. Native CEIM

  Santa Barbara ceanothus · Rhamnaceae 3 counties
• 
  Ceanothus impressus Trel. var. impressus Native CEIMI

  Santa Barbara ceanothus · Rhamnaceae 3 counties
• 
  Ceanothus impressus Trel. var. nipomensis McMinn Native CEIMN

  Santa Barbara ceanothus · Rhamnaceae 1 county
• 
  Ceanothus incanus Torr. & A. Gray Native CEIN

  coast whitethorn · Rhamnaceae 9 counties
• 
  Ceanothus integerrimus Hook. & Arn. Native CEIN3

  deerbrush · Rhamnaceae 42 counties
• 
  Ceanothus jepsonii Greene Native CEJE

  Jepson ceanothus · Rhamnaceae 9 counties
• 
  Ceanothus jepsonii Greene var. albiflorus J.T. Howell Native CEJEA

  Jepson ceanothus · Rhamnaceae 2 counties
• 
  Ceanothus jepsonii Greene var. jepsonii Native CEJEJ2

  Jepson ceanothus · Rhamnaceae 4 counties
• 
  Ceanothus lemmonii Parry Native CELE

  Lemmon's ceanothus · Rhamnaceae 14 counties
• 
  Ceanothus leucodermis Greene Native CELE2

  chaparral whitethorn · Rhamnaceae 20 counties
• 
  Ceanothus maritimus Hoover Native CEMA

  maritime ceanothus · Rhamnaceae 1 county
• 
  Ceanothus masonii McMinn Native CEMA3

  Mason's ceanothus · Rhamnaceae 1 county
• 
  Ceanothus megacarpus Nutt. Native CEME

  bigpod ceanothus · Rhamnaceae 6 counties
• 
  Ceanothus megacarpus Nutt. var. insularis (Eastw.) Munz Native CEMEI2

  island ceanothus · Rhamnaceae 3 counties
• 
  Ceanothus megacarpus Nutt. var. megacarpus Native CEMEM2

  bigpod ceanothus · Rhamnaceae 6 counties
• 
  Ceanothus oliganthus Nutt. Native CEOL

  hairy ceanothus · Rhamnaceae 25 counties
• 
  Ceanothus ophiochilus Boyd, Ross & Arnseth Native CEOP

  Vail Lake ceanothus · Rhamnaceae 1 county
• 
  Ceanothus palmeri Trel. Native CEPA

  Palmer ceanothus · Rhamnaceae 13 counties
• 
  Ceanothus papillosus Torr. & A. Gray Native CEPA2

  wartleaf ceanothus · Rhamnaceae 10 counties
• 
  Ceanothus papillosus Torr. & A. Gray var. papillosus Native CEPAP3

  wartleaf ceanothus · Rhamnaceae 6 counties
• 
  Ceanothus papillosus Torr. & A. Gray var. roweanus McMinn Native CEPAR

  wartleaf ceanothus · Rhamnaceae 7 counties
• 
  Ceanothus parryi Trel. Native CEPA3

  Parry ceanothus · Rhamnaceae 7 counties
• 
  Ceanothus parvifolius (S. Watson) Trel. Native CEPA4

  littleleaf ceanothus · Rhamnaceae 10 counties
• 
  Ceanothus pinetorum Coville Native CEPI

  Coville ceanothus · Rhamnaceae 3 counties
• 
  Ceanothus prostratus Benth. Native CEPR

  prostrate ceanothus · Rhamnaceae 21 counties
• 
  Ceanothus pumilus Greene Native CEPU

  dwarf ceanothus · Rhamnaceae 9 counties
• 
  Ceanothus purpureus Jeps. Native CEPU2

  hollyleaf ceanothus · Rhamnaceae 3 counties
• 
  Ceanothus roderickii Knight Native CERO4

  Pine Hill buckbrush · Rhamnaceae 1 county
• 
  Ceanothus sanguineus Pursh Native CESA

  redstem ceanothus · Rhamnaceae 2 counties
• 
  Ceanothus sonomensis J.T. Howell Native CESO

  Sonoma ceanothus · Rhamnaceae 2 counties
• ⚘
  Ceanothus sorediatus Hook. & Arn. Native CESO2

  jimbrush · Rhamnaceae 24 counties
• 
  Ceanothus spinosus Nutt. Native CESP

  redheart · Rhamnaceae 8 counties
• 
  Ceanothus thyrsiflorus Eschsch. Native CETH

  blueblossom · Rhamnaceae 15 counties
• 
  Ceanothus tomentosus Parry Native CETO

  woolyleaf ceanothus · Rhamnaceae 12 counties
• 
  Ceanothus velutinus Douglas ex Hook. Native CEVE

  snowbrush ceanothus · Rhamnaceae 26 counties