Louisiana

• Acadia 22001
  964 taxa Open ↗
• Allen 22003
  1,426 taxa Open ↗
• Ascension 22005
  551 taxa Open ↗
• Assumption 22007
  456 taxa Open ↗
• Avoyelles 22009
  803 taxa Open ↗
• Beauregard 22011
  1,018 taxa Open ↗
• Bienville 22013
  1,400 taxa Open ↗
• Bossier 22015
  1,395 taxa Open ↗
• Caddo 22017
  1,796 taxa Open ↗
• Calcasieu 22019
  1,531 taxa Open ↗

Showing 2,601–2,650 of 3,739.

• 
  Polygonum virginianum L. Native POVI2

  jumpseed · Polygonaceae 55 counties
• 
  Polypogon interruptus Kunth Native POIN7

  ditch rabbitsfoot grass · Poaceae 5 counties
• 
  Polypogon monspeliensis (L.) Desf. Introduced POMO5

  annual rabbitsfoot grass · Poaceae 28 counties
• 
  Polypremum procumbens L. Native POPR4

  juniper leaf · Buddlejaceae 58 counties
• 
  Polystichum acrostichoides (Michx.) Schott Native POAC4

  Christmas fern · Dryopteridaceae 47 counties
• 
  Polystichum acrostichoides (Michx.) Schott var. acrostichoides Native POACA

  Christmas fern · Dryopteridaceae 46 counties
• 
  Polystichum tsus-simense (Hook.) J. Sm. Introduced POTS

  Korean rockfern · Dryopteridaceae 1 county
• 
  Polytaenia nuttallii DC. Native PONU4

  Nuttall's prairie parsley · Apiaceae 14 counties
• 
  Poncirus trifoliata (L.) Raf. Introduced POTR4

  hardy orange · Rutaceae 50 counties
• 
  Pontederia cordata L. Native POCO14

  pickerelweed · Pontederiaceae 35 counties
• 
  Ponthieva racemosa (Walter) C. Mohr Native PORA4

  hairy shadow witch · Orchidaceae 3 counties
• 
  Populus alba L. Introduced POAL7

  white poplar · Salicaceae 20 counties
• 
  Populus deltoides W. Bartram ex Marshall Native PODE3

  eastern cottonwood · Salicaceae 44 counties
• 
  Populus deltoides W. Bartram ex Marshall ssp. deltoides Native PODED

  eastern cottonwood · Salicaceae 44 counties
• 
  Populus heterophylla L. Native POHE4

  swamp cottonwood · Salicaceae 11 counties
• ⚘
  Populus tomentosa Carrière Introduced POTO7

  Chinese white poplar · Salicaceae 2 counties
• 
  Portulaca grandiflora Hook. Introduced POGR7

  rose moss · Portulacaceae 6 counties
• 
  Portulaca oleracea L. Both POOL

  little hogweed · Portulacaceae 50 counties
• 
  Portulaca pilosa L. Native POPI3

  kiss me quick · Portulacaceae 21 counties
• 
  Portulaca umbraticola Kunth Native POUM

  wingpod purslane · Portulacaceae 1 county
• 
  Potamogeton crispus L. Introduced POCR3

  curly pondweed · Potamogetonaceae 4 counties
• 
  Potamogeton diversifolius Raf. Native PODI

  waterthread pondweed · Potamogetonaceae 39 counties
• 
  Potamogeton epihydrus Raf. Native POEP2

  ribbonleaf pondweed · Potamogetonaceae 3 counties
• 
  Potamogeton foliosus Raf. Native POFO3

  leafy pondweed · Potamogetonaceae 4 counties
• 
  Potamogeton foliosus Raf. ssp. foliosus Native POFOF4

  leafy pondweed · Potamogetonaceae 4 counties
• 
  Potamogeton nodosus Poir. Native PONO2

  longleaf pondweed · Potamogetonaceae 23 counties
• 
  Potamogeton perfoliatus L. Native POPE7

  claspingleaf pondweed · Potamogetonaceae 2 counties
• 
  Potamogeton pulcher Tuck. Native POPU6

  spotted pondweed · Potamogetonaceae 10 counties
• 
  Potamogeton pusillus L. Native POPU7

  small pondweed · Potamogetonaceae 34 counties
• 
  Potamogeton pusillus L. ssp. pusillus Native POPUP5

  small pondweed · Potamogetonaceae 34 counties
• 
  Potentilla recta L. Introduced PORE5

  sulphur cinquefoil · Rosaceae 12 counties
• 
  Potentilla simplex Michx. Native POSI2

  common cinquefoil · Rosaceae 27 counties
• 
  Prenanthes altissima L. Native PRAL3

  tall rattlesnakeroot · Asteraceae 7 counties
• 
  Prenanthes aspera Michx. Native PRAS

  rough rattlesnakeroot · Asteraceae 1 county
• 
  Prenanthes barbata (Torr. & A. Gray) Milstead Native PRBA

  barbed rattlesnakeroot · Asteraceae 4 counties
• 
  Proboscidea louisianica (Mill.) Thell. Native PRLO

  ram's horn · Pedaliaceae 7 counties
• 
  Proboscidea louisianica (Mill.) Thell. ssp. louisianica Native PRLOL

  ram's horn · Pedaliaceae 7 counties
• 
  Proserpinaca palustris L. Native PRPA3

  marsh mermaidweed · Haloragaceae 36 counties
• 
  Proserpinaca pectinata Lam. Native PRPE

  combleaf mermaidweed · Haloragaceae 14 counties
• 
  Prosopis glandulosa Torr. Native PRGL2

  honey mesquite · Fabaceae 3 counties
• 
  Prosopis glandulosa Torr. var. glandulosa Native PRGLG

  honey mesquite · Fabaceae 3 counties
• 
  Prunella vulgaris L. Native PRVU

  common selfheal · Lamiaceae 47 counties
• 
  Prunus americana Marshall Native PRAM

  American plum · Rosaceae 31 counties
• 
  Prunus angustifolia Marshall Native PRAN3

  Chickasaw plum · Rosaceae 44 counties
• 
  Prunus angustifolia Marshall var. angustifolia Native PRANA

  Chickasaw plum · Rosaceae 44 counties
• 
  Prunus caroliniana Aiton Native PRCA

  Carolina laurelcherry · Rosaceae 44 counties
• 
  Prunus gracilis Engelm. & A. Gray Native PRGR

  Oklahoma plum · Rosaceae 1 county
• 
  Prunus mexicana S. Watson Native PRME

  Mexican plum · Rosaceae 42 counties
• 
  Prunus munsoniana W. Wight & Hedrick Native PRMU

  wild goose plum · Rosaceae 7 counties
• 
  Prunus persica (L.) Batsch Introduced PRPE3

  peach · Rosaceae 36 counties