Arkansas

• Arkansas 05001
  816 taxa Open ↗
• Ashley 05003
  1,236 taxa Open ↗
• Baxter 05005
  1,025 taxa Open ↗
• Benton 05007
  1,372 taxa Open ↗
• Boone 05009
  697 taxa Open ↗
• Bradley 05011
  1,145 taxa Open ↗
• Calhoun 05013
  573 taxa Open ↗
• Carroll 05015
  1,039 taxa Open ↗
• Chicot 05017
  440 taxa Open ↗
• Clark 05019
  896 taxa Open ↗

Showing 2,301–2,350 of 3,277.

• 
  Polystichum acrostichoides (Michx.) Schott Native POAC4

  Christmas fern · Dryopteridaceae 68 counties
• 
  Polystichum acrostichoides (Michx.) Schott var. acrostichoides Native POACA

  Christmas fern · Dryopteridaceae 68 counties
• 
  Polytaenia nuttallii DC. Native PONU4

  Nuttall's prairie parsley · Apiaceae 25 counties
• 
  Poncirus trifoliata (L.) Raf. Introduced POTR4

  hardy orange · Rutaceae 25 counties
• 
  Pontederia cordata L. Native POCO14

  pickerelweed · Pontederiaceae 7 counties
• 
  Populus alba L. Introduced POAL7

  white poplar · Salicaceae 28 counties
• 
  Populus deltoides W. Bartram ex Marshall Native PODE3

  eastern cottonwood · Salicaceae 75 counties
• 
  Populus deltoides W. Bartram ex Marshall ssp. deltoides Native PODED

  eastern cottonwood · Salicaceae 75 counties
• 
  Populus heterophylla L. Native POHE4

  swamp cottonwood · Salicaceae 20 counties
• 
  Portulaca oleracea L. Both POOL

  little hogweed · Portulacaceae 23 counties
• 
  Portulaca pilosa L. Native POPI3

  kiss me quick · Portulacaceae 8 counties
• 
  Portulaca umbraticola Kunth Native POUM

  wingpod purslane · Portulacaceae 1 county
• 
  Portulaca umbraticola Kunth ssp. umbraticola Native POUMU

  wingpod purslane · Portulacaceae 1 county
• 
  Potamogeton amplifolius Tuck. Native POAM5

  largeleaf pondweed · Potamogetonaceae 5 counties
• 
  Potamogeton crispus L. Introduced POCR3

  curly pondweed · Potamogetonaceae 1 county
• 
  Potamogeton diversifolius Raf. Native PODI

  waterthread pondweed · Potamogetonaceae 18 counties
• 
  Potamogeton foliosus Raf. Native POFO3

  leafy pondweed · Potamogetonaceae 11 counties
• 
  Potamogeton foliosus Raf. ssp. foliosus Native POFOF4

  leafy pondweed · Potamogetonaceae 11 counties
• 
  Potamogeton illinoensis Morong Native POIL

  Illinois pondweed · Potamogetonaceae 1 county
• 
  Potamogeton nodosus Poir. Native PONO2

  longleaf pondweed · Potamogetonaceae 17 counties
• 
  Potamogeton pulcher Tuck. Native POPU6

  spotted pondweed · Potamogetonaceae 5 counties
• 
  Potamogeton pusillus L. Native POPU7

  small pondweed · Potamogetonaceae 9 counties
• 
  Potamogeton pusillus L. ssp. pusillus Native POPUP5

  small pondweed · Potamogetonaceae 3 counties
• 
  Potentilla arguta Pursh Native POAR7

  tall cinquefoil · Rosaceae 2 counties
• 
  Potentilla arguta Pursh ssp. arguta Native POARA4

  tall cinquefoil · Rosaceae 2 counties
• 
  Potentilla canadensis L. Native POCA17

  dwarf cinquefoil · Rosaceae 4 counties
• 
  Potentilla canadensis L. var. villosissima Fernald Native POCAV

  dwarf cinquefoil · Rosaceae 4 counties
• 
  Potentilla norvegica L. Native PONO3

  Norwegian cinquefoil · Rosaceae 6 counties
• 
  Potentilla norvegica L. ssp. monspeliensis (L.) Asch. & Graebn. Native PONOM

  Norwegian cinquefoil · Rosaceae 6 counties
• 
  Potentilla recta L. Introduced PORE5

  sulphur cinquefoil · Rosaceae 42 counties
• 
  Potentilla simplex Michx. Native POSI2

  common cinquefoil · Rosaceae 61 counties
• 
  Prenanthes alba L. Native PRAL2

  white rattlesnakeroot · Asteraceae 7 counties
• 
  Prenanthes altissima L. Native PRAL3

  tall rattlesnakeroot · Asteraceae 19 counties
• 
  Prenanthes aspera Michx. Native PRAS

  rough rattlesnakeroot · Asteraceae 7 counties
• 
  Prenanthes barbata (Torr. & A. Gray) Milstead Native PRBA

  barbed rattlesnakeroot · Asteraceae 3 counties
• 
  Prenanthes crepidinea Michx. Native PRCR

  nodding rattlesnakeroot · Asteraceae 3 counties
• 
  Proboscidea louisianica (Mill.) Thell. Native PRLO

  ram's horn · Pedaliaceae 9 counties
• 
  Proboscidea louisianica (Mill.) Thell. ssp. louisianica Native PRLOL

  ram's horn · Pedaliaceae 9 counties
• 
  Prosartes lanuginosa (Michx.) D. Don Native PRLA9

  yellow fairybells · Liliaceae 1 county
• 
  Proserpinaca palustris L. Native PRPA3

  marsh mermaidweed · Haloragaceae 13 counties
• 
  Prunella vulgaris L. Native PRVU

  common selfheal · Lamiaceae 64 counties
• 
  Prunella vulgaris L. ssp. lanceolata (W. Bartram) Hultén Native PRVUL2

  lance selfheal · Lamiaceae 64 counties
• 
  Prunus americana Marshall Native PRAM

  American plum · Rosaceae 36 counties
• 
  Prunus angustifolia Marshall Native PRAN3

  Chickasaw plum · Rosaceae 55 counties
• 
  Prunus angustifolia Marshall var. angustifolia Native PRANA

  Chickasaw plum · Rosaceae 55 counties
• 
  Prunus caroliniana Aiton Native PRCA

  Carolina laurelcherry · Rosaceae 2 counties
• 
  Prunus gracilis Engelm. & A. Gray Native PRGR

  Oklahoma plum · Rosaceae 1 county
• 
  Prunus hortulana L.H. Bailey Native PRHO

  hortulan plum · Rosaceae 7 counties
• 
  Prunus mahaleb L. Introduced PRMA

  Mahaleb cherry · Rosaceae 3 counties
• 
  Prunus mexicana S. Watson Native PRME

  Mexican plum · Rosaceae 58 counties