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 2,251–2,300 of 8,499 (native).

• 
  Collinsia tinctoria Hartw. ex Benth. Native COTI

  sticky Chinese houses · Scrophulariaceae 23 counties
• 
  Collinsia torreyi A. Gray Native COTO

  Torrey's blue eyed Mary · Scrophulariaceae 32 counties
• 
  Collinsia torreyi A. Gray var. brevicarinata Newsom Native COTOB

  Torrey's blue eyed Mary · Scrophulariaceae 5 counties
• 
  Collinsia torreyi A. Gray var. latifolia Newsom Native COTOL

  Torrey's blue eyed Mary · Scrophulariaceae 11 counties
• 
  Collinsia torreyi A. Gray var. torreyi Native COTOT

  Torrey's blue eyed Mary · Scrophulariaceae 20 counties
• 
  Collinsia torreyi A. Gray var. wrightii (S. Watson) I.M. Johnst. Native COTOW

  Wright's blue eyed Mary · Scrophulariaceae 31 counties
• 
  Collomia diversifolia Greene Native CODI2

  serpentine collomia · Polemoniaceae 9 counties
• 
  Collomia grandiflora Douglas ex Lindl. Native COGR4

  grand collomia · Polemoniaceae 40 counties
• 
  Collomia heterophylla Douglas ex Hook. Native COHE2

  variableleaf collomia · Polemoniaceae 32 counties
• 
  Collomia larsenii (A. Gray) Payson Native COLA8

  talus collomia · Polemoniaceae 2 counties
• 
  Collomia linearis Nutt. Native COLI2

  tiny trumpet · Polemoniaceae 25 counties
• 
  Collomia rawsoniana Greene Native CORA3

  flaming trumpet · Polemoniaceae 2 counties
• 
  Collomia tinctoria Kellogg Native COTI2

  staining collomia · Polemoniaceae 23 counties
• 
  Collomia tracyi H. Mason Native COTR

  Tracy's collomia · Polemoniaceae 6 counties
• 
  Colubrina californica I.M. Johnst. Native COCA18

  Las Animas nakedwood · Rhamnaceae 3 counties
• 
  Comandra umbellata (L.) Nutt. Native COUM

  bastard toadflax · Santalaceae 19 counties
• 
  Comandra umbellata (L.) Nutt. ssp. californica (Eastw. ex Rydb.) Piehl Native COUMC

  California bastard toadflax · Santalaceae 19 counties
• 
  Comarostaphylis diversifolia (Parry) Greene Native CODI3

  summer holly · Ericaceae 5 counties
• 
  Comarostaphylis diversifolia (Parry) Greene ssp. diversifolia Native CODID2

  summer holly · Ericaceae 3 counties
• 
  Comarostaphylis diversifolia (Parry) Greene ssp. planifolia (Jeps.) G. Wallace ex Thorne Native CODIP

  summer holly · Ericaceae 2 counties
• 
  Comarum palustre L. Native COPA28

  purple marshlocks · Rosaceae 9 counties
• 
  Condalia globosa I.M. Johnst. Native COGL

  bitter snakewood · Rhamnaceae 2 counties
• 
  Condalia globosa I.M. Johnst. var. pubescens Native COGLP

  bitter snakewood · Rhamnaceae 2 counties
• 
  Conioselinum gmelinii (Cham. & Schltdl.) Steud. Native COGM

  Pacific hemlockparsley · Apiaceae 6 counties
• 
  Constancea nevinii (A. Gray) B.G. Baldw. Native CONE9

  Nevin's woolly sunflower · Asteraceae 2 counties
• 
  Convolvulus equitans Benth. Native COEQ

  Texas bindweed · Convolvulaceae 11 counties
• 
  Conyza canadensis (L.) Cronquist Native COCA5

  Canadian horseweed · Asteraceae 47 counties
• 
  Conyza canadensis (L.) Cronquist var. canadensis Native COCAC3

  Canadian horseweed · Asteraceae 2 counties
• 
  Coptis laciniata A. Gray Native COLA3

  Oregon goldthread · Ranunculaceae 3 counties
• 
  Corallorhiza maculata (Raf.) Raf. Native COMA25

  summer coralroot · Orchidaceae 42 counties
• 
  Corallorhiza maculata (Raf.) Raf. var. occidentalis (Lindl.) Ames Native COMAO5

  summer coralroot · Orchidaceae 2 counties
• 
  Corallorhiza mertensiana Bong. Native COME17

  Pacific coralroot · Orchidaceae 9 counties
• 
  Corallorhiza striata Lindl. Native COST19

  hooded coralroot · Orchidaceae 32 counties
• 
  Corallorhiza striata Lindl. var. striata Native COSTS3

  hooded coralroot · Orchidaceae 1 county
• 
  Corallorhiza trifida Chatelain Native COTR18

  yellow coralroot · Orchidaceae 1 county
• 
  Cordylanthus capitatus Nutt. ex Benth. Native COCA7

  Yakima bird's-beak · Scrophulariaceae 2 counties
• 
  Cordylanthus eremicus (Coville & Morton) Munz Native COER6

  desert bird's-beak · Scrophulariaceae 4 counties
• 
  Cordylanthus eremicus (Coville & Morton) Munz ssp. eremicus Native COERE2

  desert bird's-beak · Scrophulariaceae 2 counties
• 
  Cordylanthus eremicus (Coville & Morton) Munz ssp. kernensis T.I. Chuang & Heckard Native COERK

  Kern Plateau bird's-beak · Scrophulariaceae 3 counties
• 
  Cordylanthus kingii S. Watson Native COKI

  King's bird's-beak · Scrophulariaceae 3 counties
• 
  Cordylanthus kingii S. Watson ssp. helleri (Ferris) T.I. Chuang & Heckard Native COKIH

  Heller's bird's-beak · Scrophulariaceae 3 counties
• 
  Cordylanthus maritimus Nutt. ex Benth. Native COMA5

  saltmarsh bird's-beak · Scrophulariaceae 19 counties
• 
  Cordylanthus maritimus Nutt. ex Benth. ssp. canescens (A. Gray) T.I. Chuang & Heckard Native COMAC

  saltmarsh bird's-beak · Scrophulariaceae 5 counties
• 
  Cordylanthus maritimus Nutt. ex Benth. ssp. maritimus Native COMAM3

  saltmarsh bird's-beak · Scrophulariaceae 6 counties
• 
  Cordylanthus maritimus Nutt. ex Benth. ssp. palustris (Behr) T.I. Chuang & Heckard Native COMAP

  Pt. Reyes bird's-beak · Scrophulariaceae 6 counties
• 
  Cordylanthus mollis A. Gray Native COMO

  soft bird's-beak · Scrophulariaceae 10 counties
• 
  Cordylanthus mollis A. Gray ssp. hispidus (Pennell) T.I. Chuang & Heckard Native COMOH

  hispid bird's-beak · Scrophulariaceae 5 counties
• 
  Cordylanthus mollis A. Gray ssp. mollis Native COMOM

  soft bird's-beak · Scrophulariaceae 6 counties
• 
  Cordylanthus nevinii A. Gray Native CONE

  Nevin's bird's-beak · Scrophulariaceae 7 counties
• 
  Cordylanthus nidularius J.T. Howell Native CONI2

  Mt. Diablo bird's-beak · Scrophulariaceae 1 county