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 8,101–8,150 of 9,954.

• 
  Pseudostellaria jamesiana (Torr.) W.A. Weber & R.L. Hartm. Native PSJA2

  tuber starwort · Caryophyllaceae 24 counties
• 
  Pseudostellaria sierrae Rabeler & R.L. Hartm. Native PSSI5

  pseudostellaria · Caryophyllaceae 6 counties
• 
  Pseudotsuga macrocarpa (Vasey) Mayr Native PSMA

  bigcone Douglas-fir · Pinaceae 8 counties
• 
  Pseudotsuga menziesii (Mirb.) Franco Native PSME

  Douglas-fir · Pinaceae 36 counties
• 
  Pseudotsuga menziesii (Mirb.) Franco var. menziesii Native PSMEM

  Douglas-fir · Pinaceae 36 counties
• 
  Psilocarphus brevissimus Nutt. Native PSBR

  short woollyheads · Asteraceae 42 counties
• 
  Psilocarphus brevissimus Nutt. var. brevissimus Native PSBRB

  short woollyheads · Asteraceae 41 counties
• 
  Psilocarphus brevissimus Nutt. var. multiflorus Cronquist Native PSBRM

  dwarf woollyheads · Asteraceae 9 counties
• 
  Psilocarphus elatior (A. Gray) A. Gray Native PSEL

  meadow woollyheads · Asteraceae 2 counties
• 
  Psilocarphus oregonus Nutt. Native PSOR

  Oregon woollyheads · Asteraceae 35 counties
• 
  Psilocarphus tenellus Nutt. Native PSTE

  slender woollyheads · Asteraceae 42 counties
• 
  Psilocarphus tenellus Nutt. var. globiferus (Bertero ex DC.) Morefield Native PSTEG

  slender woollyheads · Asteraceae 18 counties
• 
  Psilocarphus tenellus Nutt. var. tenellus Native PSTET2

  slender woollyheads · Asteraceae 40 counties
• 
  Psilostrophe cooperi (A. Gray) Greene Native PSCO2

  whitestem paperflower · Asteraceae 3 counties
• 
  Psoralidium lanceolatum (Pursh) Rydb. Native PSLA3

  lemon scurfpea · Fabaceae 2 counties
• 
  Psorothamnus arborescens (Torr. ex A. Gray) Barneby Native PSAR4

  Mojave indigobush · Fabaceae 5 counties
• 
  Psorothamnus arborescens (Torr. ex A. Gray) Barneby var. arborescens Native PSARA

  Mojave indigobush · Fabaceae 2 counties
• 
  Psorothamnus arborescens (Torr. ex A. Gray) Barneby var. minutifolius (Parish) Barneby Native PSARM

  Johnson's indigobush · Fabaceae 5 counties
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  Psorothamnus arborescens (Torr. ex A. Gray) Barneby var. simplifolius (Parish) Barneby Native PSARS

  California indigobush · Fabaceae 2 counties
• 
  Psorothamnus emoryi (A. Gray) Rydb. Native PSEM

  dyebush · Fabaceae 4 counties
• 
  Psorothamnus fremontii (Torr. ex A. Gray) Barneby Native PSFR

  Fremont's dalea · Fabaceae 2 counties
• 
  Psorothamnus fremontii (Torr. ex A. Gray) Barneby var. attenuatus Barneby Native PSFRA

  Fremont's dalea · Fabaceae 1 county
• 
  Psorothamnus fremontii (Torr. ex A. Gray) Barneby var. fremontii Native PSFRF

  Fremont's dalea · Fabaceae 2 counties
• 
  Psorothamnus polydenius (Torr. ex S. Watson) Rydb. Native PSPO

  Nevada dalea · Fabaceae 3 counties
• 
  Psorothamnus polydenius (Torr. ex S. Watson) Rydb. var. polydenius Native PSPOP

  Nevada dalea · Fabaceae 3 counties
• 
  Psorothamnus schottii (Torr.) Barneby Native PSSC5

  Schott's dalea · Fabaceae 3 counties
• 
  Psorothamnus spinosus (A. Gray) Barneby Native PSSP3

  smoketree · Fabaceae 5 counties
• 
  Ptelea crenulata Greene Native PTCR3

  California hoptree · Rutaceae 27 counties
• 
  Pteridium aquilinum (L.) Kuhn Native PTAQ

  western brackenfern · Dennstaedtiaceae 42 counties
• 
  Pteridium aquilinum (L.) Kuhn var. pubescens Underw. Native PTAQP2

  hairy brackenfern · Dennstaedtiaceae 42 counties
• 
  Pteris cretica L. Introduced PTCR2

  Cretan brake · Pteridaceae 9 counties
• 
  Pteris cretica L. var. cretica Introduced PTCRC

  Cretan brake · Pteridaceae 9 counties
• 
  Pteris tremula R. Br. Introduced PTTR3

  Australian brake · Pteridaceae 1 county
• 
  Pteris vittata L. Introduced PTVI

  ladder brake · Pteridaceae 1 county
• 
  Pterospora andromedea Nutt. Native PTAN2

  woodland pinedrops · Monotropaceae 29 counties
• 
  Pterostegia drymarioides Fisch. & C.A. Mey. Native PTDR

  woodland pterostegia · Polygonaceae 46 counties
• 
  Pteryxia petraea (M.E. Jones) J.M. Coult. & Rose Native PTPE

  rockloving wavewing · Apiaceae 3 counties
• 
  Pteryxia terebinthina (Hook.) J.M. Coult. & Rose Native PTTE

  turpentine wavewing · Apiaceae 20 counties
• 
  Pteryxia terebinthina (Hook.) J.M. Coult. & Rose var. californica (J.M. Coult. & Rose) Mathias Native PTTEC2

  California wavewing · Apiaceae 19 counties
• 
  Pteryxia terebinthina (Hook.) J.M. Coult. & Rose var. foeniculacea (Nutt. ex Torr. & A. Gray) Mathias Native PTTEF

  turpentine wavewing · Apiaceae 1 county
• 
  Ptilagrostis kingii (Bol.) Barkworth Native PTKI

  Sierra false needlegrass · Poaceae 7 counties
• 
  Puccinellia distans (Jacq.) Parl. Both PUDI

  weeping alkaligrass · Poaceae 9 counties
• 
  Puccinellia distans (Jacq.) Parl. ssp. distans Introduced PUDID

  weeping alkaligrass · Poaceae 9 counties
• 
  Puccinellia howellii J.I. Davis Native PUHO

  Howell's alkaligrass · Poaceae 1 county
• 
  Puccinellia lemmonii (Vasey) Scribn. Native PULE

  Lemmon's alkaligrass · Poaceae 7 counties
• 
  Puccinellia nutkaensis (J. Presl) Fernald & Weath. Native PUNU

  Nootka alkaligrass · Poaceae 5 counties
• 
  Puccinellia nuttalliana (Schult.) Hitchc. Native PUNU2

  Nuttall's alkaligrass · Poaceae 13 counties
• 
  Puccinellia parishii Hitchc. Native PUPA

  bog alkaligrass · Poaceae 1 county
• 
  Puccinellia pumila (Vasey) Hitchc. Native PUPU3

  dwarf alkaligrass · Poaceae 2 counties
• 
  Puccinellia simplex Scribn. Native PUSI

  California alkaligrass · Poaceae 11 counties