Virginia

• Accomack 51001
  1,201 taxa Open ↗
• Albemarle 51003
  1,479 taxa Open ↗
• Alexandria (city) 51510
  1 taxa Open ↗
• Alleghany 51005
  1,296 taxa Open ↗
• Amelia 51007
  1,090 taxa Open ↗
• Amherst 51009
  1,290 taxa Open ↗
• Appomattox 51011
  918 taxa Open ↗
• Arlington 51013
  1,096 taxa Open ↗
• Augusta 51015
  1,556 taxa Open ↗
• Bath 51017
  1,158 taxa Open ↗

Showing 2,551–2,600 of 3,680.

• 
  Polygonum convolvulus L. Introduced POCO10

  black bindweed · Polygonaceae 68 counties
• 
  Polygonum convolvulus L. var. convolvulus Introduced POCOC2

  black bindweed · Polygonaceae 2 counties
• 
  Polygonum cuspidatum Siebold & Zucc. Introduced POCU6

  Japanese knotweed · Polygonaceae 40 counties
• 
  Polygonum erectum L. Native POER2

  erect knotweed · Polygonaceae 45 counties
• 
  Polygonum glabrum Willd. Native POGL10

  denseflower knotweed · Polygonaceae 13 counties
• 
  Polygonum glaucum Nutt. Native POGL7

  seaside knotweed · Polygonaceae 3 counties
• 
  Polygonum hydropiper L. Introduced POHY

  marshpepper knotweed · Polygonaceae 50 counties
• 
  Polygonum hydropiperoides Michx. Native POHY2

  swamp smartweed · Polygonaceae 57 counties
• 
  Polygonum lapathifolium L. Native POLA4

  curlytop knotweed · Polygonaceae 37 counties
• 
  Polygonum orientale L. Introduced POOR2

  kiss me over the garden gate · Polygonaceae 15 counties
• 
  Polygonum pensylvanicum L. Native POPE2

  Pennsylvania smartweed · Polygonaceae 91 counties
• 
  Polygonum perfoliatum L. Introduced POPE10

  Asiatic tearthumb · Polygonaceae 3 counties
• 
  Polygonum persicaria L. Introduced POPE3

  spotted ladysthumb · Polygonaceae 91 counties
• 
  Polygonum punctatum Elliott Native POPU5

  dotted smartweed · Polygonaceae 91 counties
• 
  Polygonum punctatum Elliott var. punctatum Native POPUP4

  dotted smartweed · Polygonaceae 6 counties
• 
  Polygonum ramosissimum Michx. Native PORA3

  bushy knotweed · Polygonaceae 7 counties
• 
  Polygonum ramosissimum Michx. var. prolificum Small Native PORAP

  bushy knotweed · Polygonaceae 7 counties
• 
  Polygonum sachalinense F. Schmidt ex Maxim. Introduced POSA4

  giant knotweed · Polygonaceae 3 counties
• 
  Polygonum sagittatum L. Native POSA5

  arrowleaf tearthumb · Polygonaceae 95 counties
• 
  Polygonum scandens L. Both POSC3

  climbing false buckwheat · Polygonaceae 80 counties
• 
  Polygonum scandens L. var. scandens Native POSCS

  climbing false buckwheat · Polygonaceae 5 counties
• 
  Polygonum setaceum Baldw. Native POSE6

  bog smartweed · Polygonaceae 33 counties
• 
  Polygonum tenue Michx. Native POTE2

  pleatleaf knotweed · Polygonaceae 43 counties
• 
  Polygonum virginianum L. Native POVI2

  jumpseed · Polygonaceae 89 counties
• 
  Polymnia canadensis L. Native POCA11

  whiteflower leafcup · Asteraceae 43 counties
• 
  Polypodium virginianum L. Native POVI7

  rock polypody · Polypodiaceae 79 counties
• 
  Polypogon monspeliensis (L.) Desf. Introduced POMO5

  annual rabbitsfoot grass · Poaceae 14 counties
• 
  Polypremum procumbens L. Native POPR4

  juniper leaf · Buddlejaceae 53 counties
• 
  Polystichum acrostichoides (Michx.) Schott Native POAC4

  Christmas fern · Dryopteridaceae 100 counties
• 
  Polystichum acrostichoides (Michx.) Schott var. acrostichoides Native POACA

  Christmas fern · Dryopteridaceae 100 counties
• 
  Poncirus trifoliata (L.) Raf. Introduced POTR4

  hardy orange · Rutaceae 13 counties
• 
  Pontederia cordata L. Native POCO14

  pickerelweed · Pontederiaceae 50 counties
• 
  Ponthieva racemosa (Walter) C. Mohr Native PORA4

  hairy shadow witch · Orchidaceae 7 counties
• 
  Populus alba L. Introduced POAL7

  white poplar · Salicaceae 89 counties
• 
  Populus balsamifera L. Native POBA2

  balsam poplar · Salicaceae 1 county
• 
  Populus balsamifera L. ssp. balsamifera Native POBAB2

  balsam poplar · Salicaceae 1 county
• 
  Populus deltoides W. Bartram ex Marshall Native PODE3

  eastern cottonwood · Salicaceae 65 counties
• 
  Populus deltoides W. Bartram ex Marshall ssp. deltoides Native PODED

  eastern cottonwood · Salicaceae 65 counties
• 
  Populus grandidentata Michx. Native POGR4

  bigtooth aspen · Salicaceae 66 counties
• 
  Populus heterophylla L. Native POHE4

  swamp cottonwood · Salicaceae 27 counties
• 
  Populus nigra L. Introduced PONI

  Lombardy poplar · Salicaceae 5 counties
• 
  Populus tremuloides Michx. Native POTR5

  quaking aspen · Salicaceae 12 counties
• ⚘
  Populus ×canescens (Aiton) Sm. (pro sp.) [alba × tremula] Introduced POCA14

  gray poplar · Salicaceae 39 counties
• ⚘
  Populus ×jackii Sarg. [balsamifera × deltoides] Native POJA2

  balm-of-Gilead · Salicaceae 8 counties
• 
  Portulaca amilis Speg. Introduced POAM13

  Paraguayan purslane · Portulacaceae 2 counties
• 
  Portulaca oleracea L. Both POOL

  little hogweed · Portulacaceae 53 counties
• 
  Portulaca smallii P. Wilson Native POSM

  Small's purslane · Portulacaceae 3 counties
• 
  Potamogeton amplifolius Tuck. Native POAM5

  largeleaf pondweed · Potamogetonaceae 7 counties
• 
  Potamogeton crispus L. Introduced POCR3

  curly pondweed · Potamogetonaceae 25 counties
• 
  Potamogeton diversifolius Raf. Native PODI

  waterthread pondweed · Potamogetonaceae 43 counties