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 7,751–7,800 of 9,954.

• 
  Platanthera gracilis Lindl. Native PLGR6

  lax-flowered green orchid · Orchidaceae 3 counties
• 
  Platanthera sparsiflora (S. Watson) Schltr. Native PLSP2

  sparse-flowered bog orchid · Orchidaceae 36 counties
• 
  Platanthera sparsiflora (S. Watson) Schltr. var. sparsiflora Native PLSPS

  sparse-flowered bog orchid · Orchidaceae 36 counties
• 
  Platanthera sparsiflora × tescamnis [unnamed hybrid] Native PLSP8

  Orchidaceae 1 county
• 
  Platanthera stricta Lindl. Native PLST4

  slender bog orchid · Orchidaceae 5 counties
• 
  Platanthera tescamnis Sheviak & W.F. Jenn. Native PLTE5

  intermountain bog orchid · Orchidaceae 2 counties
• 
  Platanthera yosemitensis Colwell, Sheviak & P.E. Moore Native PLYO2

  Yosemite bog orchid · Orchidaceae 1 county
• 
  Platanus racemosa Nutt. Native PLRA

  California sycamore · Platanaceae 32 counties
• ⚘
  Platanus ×hispanica Mill. ex Münchh. [occidentalis × orientalis] Introduced PLHI

  London planetree · Platanaceae 1 county
• 
  Platystemon californicus Benth. Native PLCA5

  creamcups · Papaveraceae 48 counties
• 
  Platystigma linearis Benth. Native PLLI4

  narrowleaf queen poppy · Papaveraceae 17 counties
• 
  Plecostachys serpyllifolia (P.J. Bergius) Hilliard & B.L. Burtt Introduced PLSE7

  petite licorice · Asteraceae 8 counties
• 
  Plectritis ciliosa (Greene) Jeps. Native PLCI

  longspur seablush · Valerianaceae 39 counties
• 
  Plectritis ciliosa (Greene) Jeps. ssp. ciliosa Native PLCIC

  longspur seablush · Valerianaceae 33 counties
• 
  Plectritis ciliosa (Greene) Jeps. ssp. insignis (Suksd.) Morey Native PLCII

  longspur seablush · Valerianaceae 24 counties
• 
  Plectritis congesta (Lindl.) DC. Native PLCO4

  shortspur seablush · Valerianaceae 25 counties
• 
  Plectritis congesta (Lindl.) DC. ssp. brachystemon (Fisch. & C.A. Mey.) Morey Native PLCOB

  shortspur seablush · Valerianaceae 24 counties
• 
  Plectritis congesta (Lindl.) DC. ssp. congesta Native PLCOC3

  shortspur seablush · Valerianaceae 24 counties
• 
  Plectritis congesta (Lindl.) DC. ssp. nitida (A. Heller) Morey Native PLCON

  shortspur seablush · Valerianaceae 1 county
• 
  Plectritis macrocera Torr. & A. Gray Native PLMA4

  longhorn plectritis · Valerianaceae 43 counties
• 
  Plectritis macrocera Torr. & A. Gray ssp. grayi (Suksd.) Morey Native PLMAG

  Gray's seablush · Valerianaceae 5 counties
• 
  Plectritis macrocera Torr. & A. Gray ssp. macrocera Native PLMAM2

  longhorn plectritis · Valerianaceae 43 counties
• 
  Pleiacanthus spinosus (Nutt.) Rydb. Native PLSP7

  thorn skeletonweed · Asteraceae 11 counties
• 
  Pleuraphis jamesii Torr. Native PLJA

  James' galleta · Poaceae 3 counties
• 
  Pleuraphis rigida Thurb. Native PLRI3

  big galleta · Poaceae 6 counties
• 
  Pleuricospora fimbriolata A. Gray Native PLFI2

  fringed pinesap · Monotropaceae 19 counties
• ⚘
  Pleuridium mexicanum Cardot Native PLME8

  Mexican pleuridium moss · Ditrichaceae 1 county
• 
  Pleurocoronis pluriseta (A. Gray) R.M. King & H. Rob. Native PLPL

  bush arrowleaf · Asteraceae 5 counties
• 
  Pleuropogon californicus (Nees) Benth. ex Vasey Native PLCA6

  annual semaphoregrass · Poaceae 16 counties
• 
  Pleuropogon californicus (Nees) Benth. ex Vasey var. californicus Native PLCAC7

  annual semaphoregrass · Poaceae 16 counties
• 
  Pleuropogon californicus (Nees) Benth. ex Vasey var. davyi (L.D. Benson) But Native PLCAD

  annual semaphoregrass · Poaceae 2 counties
• 
  Pleuropogon hooverianus (L.D. Benson) J.T. Howell Native PLHO2

  North Coast semaphoregrass · Poaceae 3 counties
• 
  Pleuropogon oregonus Chase Native PLOR3

  Oregon semaphoregrass · Poaceae 1 county
• 
  Pleuropogon refractus (A. Gray) Benth. ex Vasey Native PLRE2

  nodding semaphoregrass · Poaceae 4 counties
• 
  Pluchea odorata (L.) Cass. Native PLOD

  sweetscent · Asteraceae 14 counties
• 
  Pluchea odorata (L.) Cass. var. odorata Native PLODO

  sweetscent · Asteraceae 14 counties
• 
  Pluchea sericea (Nutt.) Coville Native PLSE

  arrowweed · Asteraceae 12 counties
• 
  Plumbago auriculata Lam. Introduced PLAU6

  Cape leadwort · Plumbaginaceae 1 county
• 
  Poa abbreviata R. Br. Native POAB

  short bluegrass · Poaceae 1 county
• 
  Poa abbreviata R. Br. ssp. marshii Soreng Native POABM

  Marsh's bluegrass · Poaceae 1 county
• 
  Poa abbreviata R. Br. ssp. pattersonii (Vasey) Á. Löve & D. Löve & Kapoor Native POABP

  Patterson's bluegrass · Poaceae 1 county
• 
  Poa annua L. Introduced POAN

  annual bluegrass · Poaceae 49 counties
• 
  Poa atropurpurea Scribn. Native POAT

  San Bernardino bluegrass · Poaceae 2 counties
• 
  Poa bigelovii Vasey & Scribn. Native POBI

  Bigelow's bluegrass · Poaceae 5 counties
• 
  Poa bolanderi Vasey Native POBO

  Bolander's bluegrass · Poaceae 25 counties
• 
  Poa bulbosa L. Introduced POBU

  bulbous bluegrass · Poaceae 37 counties
• 
  Poa compressa L. Introduced POCO

  Canada bluegrass · Poaceae 26 counties
• 
  Poa confinis Vasey Native POCO2

  coastline bluegrass · Poaceae 3 counties
• 
  Poa cusickii Vasey Native POCU3

  Cusick's bluegrass · Poaceae 19 counties
• 
  Poa cusickii Vasey ssp. cusickii Native POCUC4

  Cusick's bluegrass · Poaceae 10 counties