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 351–400 of 562 (introduced).

• 
  Ornithogalum umbellatum L. Introduced ORUM

  star of Bethlehem · Liliaceae 24 counties
• 
  Oryza sativa L. Introduced ORSA

  rice · Poaceae 9 counties
• 
  Oxalis rubra A. St.-Hil. Introduced OXRU

  windowbox woodsorrel · Oxalidaceae 16 counties
• 
  Papaver dubium L. Introduced PADU

  blindeyes · Papaveraceae 9 counties
• 
  Papaver rhoeas L. Introduced PARH2

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

  opium poppy · Papaveraceae 1 county
• 
  Parentucellia viscosa (L.) Caruel Introduced PAVI3

  yellow glandweed · Scrophulariaceae 2 counties
• 
  Parthenium hysterophorus L. Introduced PAHY

  Santa Maria feverfew · Asteraceae 1 county
• 
  Paspalum dilatatum Poir. Introduced PADI3

  dallisgrass · Poaceae 44 counties
• 
  Paspalum notatum Flueggé var. saurae Parodi Introduced PANOS

  bahiagrass · Poaceae 1 county
• 
  Paspalum urvillei Steud. Introduced PAUR2

  Vasey's grass · Poaceae 20 counties
• 
  Pastinaca sativa L. Introduced PASA2

  wild parsnip · Apiaceae 2 counties
• 
  Paulownia tomentosa (Thunb.) Siebold & Zucc. ex Steud. Introduced PATO2

  princesstree · Scrophulariaceae 30 counties
• 
  Pennisetum glaucum (L.) R. Br. Introduced PEGL2

  pearl millet · Poaceae 46 counties
• 
  Perilla frutescens (L.) Britton Introduced PEFR4

  beefsteakplant · Lamiaceae 51 counties
• 
  Perilla frutescens (L.) Britton var. frutescens Introduced PEFRF2

  beefsteakplant · Lamiaceae 1 county
• 
  Petrorhagia prolifera (L.) P.W. Ball & Heywood Introduced PEPR4

  childing pink · Caryophyllaceae 4 counties
• 
  Petunia axillaris (Lam.) Britton, Sterns & Poggenb. Introduced PEAX

  large white petunia · Solanaceae 1 county
• 
  Phalaris canariensis L. Introduced PHCA5

  annual canarygrass · Poaceae 3 counties
• 
  Phaseolus lunatus L. Introduced PHLU2

  sieva bean · Fabaceae 1 county
• 
  Phleum pratense L. Introduced PHPR3

  timothy · Poaceae 17 counties
• 
  Photinia serratifolia (Desf.) Kalkm. Introduced PHSE17

  Taiwanese photinia · Rosaceae 1 county
• 
  Phyllanthus urinaria L. Introduced PHUR

  chamber bitter · Euphorbiaceae 5 counties
• 
  Physalis philadelphica Lam. Introduced PHPH2

  Mexican groundcherry · Solanaceae 1 county
• 
  Pinus nigra Arnold Introduced PINI

  Austrian pine · Pinaceae 1 county
• 
  Pisum sativum L. Introduced PISA6

  garden pea · Fabaceae 1 county
• 
  Plantago lanceolata L. Introduced PLLA

  narrowleaf plantain · Plantaginaceae 45 counties
• 
  Poa annua L. Introduced POAN

  annual bluegrass · Poaceae 35 counties
• 
  Poa bulbosa L. Introduced POBU

  bulbous bluegrass · Poaceae 2 counties
• 
  Poa compressa L. Introduced POCO

  Canada bluegrass · Poaceae 10 counties
• 
  Poa pratensis L. ssp. pratensis Introduced POPRP2

  Kentucky bluegrass · Poaceae 41 counties
• 
  Polygonum arenastrum Jord. ex Boreau Introduced POAR11

  oval-leaf knotweed · Polygonaceae 3 counties
• 
  Polygonum aviculare L. Introduced POAV

  prostrate knotweed · Polygonaceae 38 counties
• 
  Polygonum cespitosum Blume var. longisetum (Bruijn) A.N. Steward Introduced POCEL

  Oriental lady's thumb · Polygonaceae 2 counties
• 
  Polygonum cespitosum Blume, nom. inq. Introduced POCE4

  Oriental lady's thumb · Polygonaceae 2 counties
• 
  Polygonum convolvulus L. Introduced POCO10

  black bindweed · Polygonaceae 15 counties
• 
  Polygonum convolvulus L. var. convolvulus Introduced POCOC2

  black bindweed · Polygonaceae 15 counties
• 
  Polygonum cuspidatum Siebold & Zucc. Introduced POCU6

  Japanese knotweed · Polygonaceae 2 counties
• 
  Polygonum hydropiper L. Introduced POHY

  marshpepper knotweed · Polygonaceae 9 counties
• 
  Polygonum orientale L. Introduced POOR2

  kiss me over the garden gate · Polygonaceae 3 counties
• 
  Polygonum persicaria L. Introduced POPE3

  spotted ladysthumb · Polygonaceae 29 counties
• 
  Polypogon monspeliensis (L.) Desf. Introduced POMO5

  annual rabbitsfoot grass · Poaceae 5 counties
• 
  Poncirus trifoliata (L.) Raf. Introduced POTR4

  hardy orange · Rutaceae 25 counties
• 
  Populus alba L. Introduced POAL7

  white poplar · Salicaceae 28 counties
• 
  Potamogeton crispus L. Introduced POCR3

  curly pondweed · Potamogetonaceae 1 county
• 
  Potentilla recta L. Introduced PORE5

  sulphur cinquefoil · Rosaceae 42 counties
• 
  Prunus mahaleb L. Introduced PRMA

  Mahaleb cherry · Rosaceae 3 counties
• 
  Prunus persica (L.) Batsch Introduced PRPE3

  peach · Rosaceae 33 counties
• 
  Prunus persica (L.) Batsch var. persica Introduced PRPEP2

  peach · Rosaceae 33 counties
• 
  Pteris multifida Poir. Introduced PTMU

  spider brake · Pteridaceae 1 county