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 751–800 of 9,954.

• 
  Argemone corymbosa Greene ssp. corymbosa Native ARCOC6

  Mojave pricklypoppy · Papaveraceae 1 county
• 
  Argemone munita Durand & Hilg. Native ARMU

  flatbud pricklypoppy · Papaveraceae 30 counties
• 
  Argemone munita Durand & Hilg. ssp. argentea G.B. Ownbey Native ARMUA

  flatbud pricklypoppy · Papaveraceae 13 counties
• 
  Argemone munita Durand & Hilg. ssp. munita Native ARMUM

  flatbud pricklypoppy · Papaveraceae 2 counties
• 
  Argemone munita Durand & Hilg. ssp. robusta G.B. Ownbey Native ARMUR2

  flatbud pricklypoppy · Papaveraceae 1 county
• 
  Argemone munita Durand & Hilg. ssp. rotundata (Rydb.) G.B. Ownbey Native ARMUR

  flatbud pricklypoppy · Papaveraceae 16 counties
• 
  Argentina anserina (L.) Rydb. Native ARAN7

  silverweed cinquefoil · Rosaceae 24 counties
• ⚘
  Argentina egedii (Wormsk.) Rydb. Native AREG

  Pacific silverweed · Rosaceae 17 counties
• ⚘
  Argentina egedii (Wormsk.) Rydb. ssp. egedii Native AREGE

  Pacific silverweed · Rosaceae 17 counties
• 
  Argyranthemum foeniculum (Willd.) Sch. Bip. Introduced ARFO7

  dill daisy · Asteraceae 2 counties
• 
  Argyranthemum frutescens (L.) Sch. Bip. Introduced ARFR11

  marguerite · Asteraceae 1 county
• 
  Argyrochosma jonesii (Maxon) Windham Native ARJO2

  Jones' false cloak fern · Pteridaceae 6 counties
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  Argyrochosma limitanea (Maxon) Windham Native ARLI4

  southwestern false cloak fern · Pteridaceae 1 county
• 
  Argyrochosma limitanea (Maxon) Windham ssp. limitanea Native ARLIL

  southwestern false cloak fern · Pteridaceae 1 county
• 
  Argythamnia californica Brandegee Native ARCA19

  California silverbush · Euphorbiaceae 2 counties
• 
  Argythamnia claryana Jeps. Native ARCL2

  desert silverbush · Euphorbiaceae 3 counties
• 
  Argythamnia lanceolata (Benth.) Müll. Arg. Native ARLA12

  narrowleaf silverbush · Euphorbiaceae 4 counties
• 
  Argythamnia neomexicana Müll. Arg. Native ARNE2

  New Mexico silverbush · Euphorbiaceae 2 counties
• 
  Argythamnia serrata (Torr.) Müll. Arg. Native ARSE7

  Yuma silverbush · Euphorbiaceae 4 counties
• 
  Aristida adscensionis L. Native ARAD

  sixweeks threeawn · Poaceae 9 counties
• 
  Aristida californica Thurb. ex S. Watson Native ARCA9

  California threeawn · Poaceae 4 counties
• 
  Aristida californica Thurb. ex S. Watson var. californica Native ARCAC8

  California threeawn · Poaceae 4 counties
• 
  Aristida dichotoma Michx. Native ARDI4

  churchmouse threeawn · Poaceae 1 county
• 
  Aristida dichotoma Michx. var. dichotoma Native ARDID

  churchmouse threeawn · Poaceae 1 county
• 
  Aristida divaricata Humb. & Bonpl. ex Willd. Native ARDI5

  poverty threeawn · Poaceae 5 counties
• 
  Aristida oligantha Michx. Native AROL

  prairie threeawn · Poaceae 20 counties
• 
  Aristida purpurea Nutt. Native ARPU9

  purple threeawn · Poaceae 7 counties
• 
  Aristida purpurea Nutt. var. fendleriana (Steud.) Vasey Native ARPUF

  Fendler's threeawn · Poaceae 4 counties
• 
  Aristida purpurea Nutt. var. longiseta (Steud.) Vasey Native ARPUL

  Fendler threeawn · Poaceae 3 counties
• 
  Aristida purpurea Nutt. var. nealleyi (Vasey) Allred Native ARPUN

  blue threeawn · Poaceae 5 counties
• 
  Aristida purpurea Nutt. var. parishii (Hitchc.) Allred Native ARPUP5

  Parish's threeawn · Poaceae 4 counties
• 
  Aristida purpurea Nutt. var. purpurea Native ARPUP6

  purple threeawn · Poaceae 2 counties
• 
  Aristida purpurea Nutt. var. wrightii (Nash) Allred Native ARPUW

  Wright's threeawn · Poaceae 4 counties
• 
  Aristida schiedeana Trin. & Rupr. Native ARSC3

  single threeawn · Poaceae 1 county
• 
  Aristida schiedeana Trin. & Rupr. var. orcuttiana (Vasey) Allred & Valdés-Reyna Native ARSCO

  Orcutt's threeawn · Poaceae 1 county
• 
  Aristida ternipes Cav. Native ARTE3

  spidergrass · Poaceae 17 counties
• 
  Aristida ternipes Cav. var. gentilis (Henr.) Allred Native ARTEG

  spidergrass · Poaceae 17 counties
• 
  Aristocapsa insignis (Curran) Reveal & Hardham Native ARIN12

  Indian Valley spinycape · Polygonaceae 2 counties
• 
  Aristolochia californica Torr. Native ARCA10

  California dutchman's pipe · Aristolochiaceae 23 counties
• 
  Aristotelia chilensis (Molina) Stuntz Introduced ARCH17

  maquei · Elaeocarpaceae 1 county
• 
  Armeria maritima (Mill.) Willd. Native ARMA6

  thrift seapink · Plumbaginaceae 11 counties
• 
  Armeria maritima (Mill.) Willd. ssp. californica (Boiss.) A.E. Porsild Native ARMAC2

  California seapink · Plumbaginaceae 11 counties
• 
  Armoracia rusticana G. Gaertn., B. Mey. & Scherb. Introduced ARRU4

  horseradish · Brassicaceae 1 county
• ⚘
  Arnica amplexicaulis Nutt. Native ARAM2

  clasping arnica · Asteraceae 9 counties
• 
  Arnica cernua Howell Native ARCE

  serpentine arnica · Asteraceae 4 counties
• 
  Arnica chamissonis Less. Native ARCH3

  Chamisso arnica · Asteraceae 21 counties
• 
  Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire Native ARCHF

  Chamisso arnica · Asteraceae 21 counties
• 
  Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire var. andina (Nutt.) Ediger & T.M. Barkley Native ARCHA2

  Chamisso arnica · Asteraceae 1 county
• 
  Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire var. bernardina (Greene) Maguire Native ARCHB2

  Chamisso arnica · Asteraceae 1 county
• 
  Arnica chamissonis Less. ssp. foliosa (Nutt.) Maguire var. incana (A. Gray) Hultén Native ARCHI4

  Chamisso arnica · Asteraceae 21 counties