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 7,051–7,100 of 9,954.

• 
  Packera werneriifolia (A. Gray) W.A. Weber & Á. Löve Native PAWE4

  hoary groundsel · Asteraceae 8 counties
• 
  Paeonia brownii Douglas ex Hook. Native PABR

  Brown's peony · Paeoniaceae 20 counties
• 
  Paeonia californica Nutt. Native PACA2

  California peony · Paeoniaceae 9 counties
• 
  Palafoxia arida B.L. Turner & Morris Native PAAR8

  desert palafox · Asteraceae 5 counties
• 
  Palafoxia arida B.L. Turner & Morris var. arida Native PAARA2

  desert palafox · Asteraceae 5 counties
• 
  Palafoxia arida B.L. Turner & Morris var. gigantea (M.E. Jones) B.L. Turner & Morris Native PAARG

  giant Spanish needle · Asteraceae 1 county
• 
  Pallenis maritima Greuter Introduced PAMA28

  estrella de mar · Asteraceae 1 county
• 
  Pancratium maritimum L. Introduced PAMA38

  sea-daffodil · Liliaceae 2 counties
• 
  Panicum antidotale Retz. Introduced PAAN4

  blue panicum · Poaceae 4 counties
• 
  Panicum capillare L. Native PACA6

  witchgrass · Poaceae 46 counties
• 
  Panicum dichotomiflorum Michx. Native PADI

  fall panicgrass · Poaceae 23 counties
• 
  Panicum dichotomiflorum Michx. var. dichotomiflorum Native PADID

  fall panicgrass · Poaceae 23 counties
• 
  Panicum hillmanii Chase Native PAHI3

  Hillman's panicgrass · Poaceae 11 counties
• 
  Panicum hirticaule J. Presl Native PAHI5

  Mexican panicgrass · Poaceae 3 counties
• 
  Panicum hirticaule J. Presl var. hirticaule Native PAHIH

  Mexican panicgrass · Poaceae 3 counties
• 
  Panicum miliaceum L. Introduced PAMI2

  proso millet · Poaceae 16 counties
• 
  Panicum miliaceum L. ssp. miliaceum Introduced PAMIM

  broomcorn millet · Poaceae 16 counties
• 
  Panicum repens L. Introduced PARE3

  torpedo grass · Poaceae 1 county
• 
  Panicum rigidulum Bosc ex Nees Native PARI4

  redtop panicgrass · Poaceae 5 counties
• 
  Panicum rigidulum Bosc ex Nees var. rigidulum Native PARIR

  redtop panicgrass · Poaceae 5 counties
• 
  Panicum urvilleanum Kunth Native PAUR

  desert panicgrass · Poaceae 3 counties
• 
  Papaver argemone L. Introduced PAAR3

  long pricklyhead poppy · Papaveraceae 2 counties
• 
  Papaver californicum A. Gray Native PACA9

  western poppy · Papaveraceae 10 counties
• 
  Papaver hybridum L. Introduced PAHY3

  round pricklyhead poppy · Papaveraceae 4 counties
• 
  Papaver rhoeas L. Introduced PARH2

  corn poppy · Papaveraceae 4 counties
• 
  Papaver somniferum L. Introduced PASO2

  opium poppy · Papaveraceae 5 counties
• 
  Parapholis incurva (L.) C.E. Hubbard Introduced PAIN

  curved sicklegrass · Poaceae 21 counties
• 
  Parapholis strigosa (Dumort.) C.E. Hubbard Introduced PAST20

  strigose sicklegrass · Poaceae 4 counties
• 
  Paraserianthes lophantha (Willd.) I.C. Nielsen Introduced PALO8

  plume albizia · Fabaceae 9 counties
• 
  Parentucellia latifolia (L.) Caruel Introduced PALA28

  broadleaf glandweed · Scrophulariaceae 3 counties
• 
  Parentucellia viscosa (L.) Caruel Introduced PAVI3

  yellow glandweed · Scrophulariaceae 8 counties
• 
  Parietaria hespera Hinton Native PAHE5

  rillita pellitory · Urticaceae 15 counties
• 
  Parietaria hespera Hinton var. californica Native PAHEC

  California pellitory · Urticaceae 7 counties
• 
  Parietaria hespera Hinton var. hespera Native PAHEH

  rillita pellitory · Urticaceae 11 counties
• 
  Parietaria judaica L. Introduced PAJU

  spreading pellitory · Urticaceae 8 counties
• 
  Parietaria pensylvanica Muhl. ex Willd. Native PAPE5

  Pennsylvania pellitory · Urticaceae 9 counties
• 
  Parishella californica A. Gray Native PACA10

  Mojave dwarf · Campanulaceae 3 counties
• 
  Parkinsonia aculeata L. Native PAAC3

  Jerusalem thorn · Fabaceae 7 counties
• 
  Parkinsonia florida (Benth. ex A. Gray) S. Watson Native PAFL6

  blue paloverde · Fabaceae 4 counties
• 
  Parkinsonia microphylla Torr. Native PAMI5

  yellow paloverde · Fabaceae 1 county
• ⚘
  Parnassia californica (A. Gray) Greene Native PACA18

  California grass of Parnassus · Saxifragaceae 31 counties
• 
  Parnassia cirrata Piper Native PACI2

  San Bernardino grass of Parnassus · Saxifragaceae 2 counties
• 
  Parnassia fimbriata K.D. Koenig Native PAFI3

  fringed grass of Parnassus · Saxifragaceae 4 counties
• 
  Parnassia fimbriata K.D. Koenig var. fimbriata Native PAFIF

  fringed grass of Parnassus · Saxifragaceae 4 counties
• 
  Parnassia palustris L. Native PAPA8

  marsh grass of Parnassus · Saxifragaceae 2 counties
• 
  Parnassia palustris L. var. montanensis (Fernald & Rydb. ex Rydb.) C.L. Hitchc. Native PAPAM2

  mountain grass of Parnassus · Saxifragaceae 2 counties
• 
  Paronychia ahartii Ertter Native PAAH

  Ahart's nailwort · Caryophyllaceae 3 counties
• 
  Paronychia echinulata Chater Introduced PAEC2

  Eurasian nailwort · Caryophyllaceae 1 county
• 
  Paronychia franciscana Eastw. Introduced PAFR

  San Francisco nailwort · Caryophyllaceae 4 counties
• 
  Parthenocissus vitacea (Knerr) Hitchc. Native PAVI5

  woodbine · Vitaceae 2 counties