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 2,701–2,750 of 9,954.

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  Corethrogyne filaginifolia (Hook. & Arn.) Nutt. var. californica (DC.) J.P. Saroyan Native COFIC

  California sandaster · Asteraceae 13 counties
• 
  Corethrogyne filaginifolia (Hook. & Arn.) Nutt. var. filaginifolia Native COFIF

  common sandaster · Asteraceae 24 counties
• 
  Coriandrum sativum L. Introduced COSA

  coriander · Apiaceae 10 counties
• 
  Corispermum pacificum Mosyakin Native COPA37

  common bugseed · Chenopodiaceae 1 county
• 
  Cornus glabrata Benth. Native COGL3

  brown dogwood · Cornaceae 34 counties
• 
  Cornus nuttallii Audubon ex Torr. & A. Gray Native CONU4

  Pacific dogwood · Cornaceae 36 counties
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  Cornus sericea L. Native COSE16

  redosier dogwood · Cornaceae 50 counties
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  Cornus sericea L. ssp. occidentalis (Torr. & A. Gray) Fosberg Native COSEO

  western dogwood · Cornaceae 30 counties
• 
  Cornus sericea L. ssp. sericea Native COSES

  redosier dogwood · Cornaceae 49 counties
• 
  Cornus sessilis Torr. ex Durand Native COSE3

  blackfruit dogwood · Cornaceae 14 counties
• 
  Cornus unalaschkensis Ledeb. Native COUN

  western cordilleran bunchberry · Cornaceae 2 counties
• 
  Coronilla valentina L. Introduced COVA4

  Mediterranean crownvetch · Fabaceae 1 county
• 
  Coronopus didymus (L.) Sm. Introduced CODI6

  lesser swinecress · Brassicaceae 25 counties
• 
  Coronopus squamatus (Forssk.) Asch. Introduced COSQ

  greater swinecress · Brassicaceae 6 counties
• 
  Cortaderia jubata (Lem.) Stapf Introduced COJU2

  purple pampas grass · Poaceae 6 counties
• 
  Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. Introduced COSE4

  Uruguayan pampas grass · Poaceae 19 counties
• 
  Corydalis aurea Willd. Native COAU2

  scrambled eggs · Fumariaceae 2 counties
• 
  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
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  Corylus cornuta Marshall var. californica (A. DC.) Sharp Native COCOC

  California hazelnut · Betulaceae 35 counties
• 
  Corymbia citriodora (Hook.) K.D. Hill & L.A.S. Johnson Introduced COCI4

  lemonscented gum · Myrtaceae 1 county
• 
  Cosmos bipinnatus Cav. Introduced COBI2

  garden cosmos · Asteraceae 1 county
• 
  Cotoneaster franchetii Boiss. Introduced COFR3

  orange cotoneaster · Rosaceae 4 counties
• 
  Cotoneaster lacteus W.W. Sm. Introduced COLA18

  milkflower cotoneaster · Rosaceae 3 counties
• 
  Cotoneaster pannosus Franch. Introduced COPA14

  silverleaf cotoneaster · Rosaceae 5 counties
• 
  Cotoneaster simonsii Baker Introduced COSI82

  Simons' cotoneaster · Rosaceae 1 county
• 
  Cotula australis (Sieber ex Spreng.) Hook. f. Introduced COAU3

  Australian waterbuttons · Asteraceae 25 counties
• 
  Cotula coronopifolia L. Introduced COCO7

  common brassbuttons · Asteraceae 26 counties
• 
  Cotula mexicana (DC.) Cabrera Introduced COME15

  Mexican brassbuttons · Asteraceae 8 counties
• 
  Cotyledon orbiculata L. Introduced COOR2

  pig's ear · Crassulaceae 3 counties
• 
  Cotyledon orbiculata L. var. oblongata (Haw.) DC. Introduced COORO

  pig's ear · Crassulaceae 3 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 multicava Lem. Introduced CRMU10

  Cape Province pygmyweed · Crassulaceae 2 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
• 
  Crassula tillaea Lester-Garland Introduced CRTI

  moss pygmyweed · Crassulaceae 18 counties
• 
  Crataegus douglasii Lindl. Native CRDO2

  black hawthorn · Rosaceae 10 counties
• 
  Crataegus monogyna Jacq. Introduced CRMO3

  oneseed hawthorn · Rosaceae 5 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