Ohio

• Adams 39001
  1,331 taxa Open ↗
• Allen 39003
  1,038 taxa Open ↗
• Ashland 39005
  998 taxa Open ↗
• Ashtabula 39007
  1,437 taxa Open ↗
• Athens 39009
  1,149 taxa Open ↗
• Auglaize 39011
  958 taxa Open ↗
• Belmont 39013
  945 taxa Open ↗
• Brown 39015
  629 taxa Open ↗
• Butler 39017
  850 taxa Open ↗
• Carroll 39019
  933 taxa Open ↗

Showing 2,351–2,400 of 3,424.

• 
  Polygonum buxiforme Small Native POBU2

  box knotweed · Polygonaceae 3 counties
• 
  Polygonum careyi Olney Native POCA8

  Carey's smartweed · Polygonaceae 4 counties
• 
  Polygonum cespitosum Blume var. longisetum (Bruijn) A.N. Steward Introduced POCEL

  Oriental lady's thumb · Polygonaceae 36 counties
• 
  Polygonum cespitosum Blume, nom. inq. Introduced POCE4

  Oriental lady's thumb · Polygonaceae 36 counties
• 
  Polygonum cilinode Michx. Native POCI

  fringed black bindweed · Polygonaceae 5 counties
• 
  Polygonum convolvulus L. Introduced POCO10

  black bindweed · Polygonaceae 64 counties
• 
  Polygonum convolvulus L. var. convolvulus Introduced POCOC2

  black bindweed · Polygonaceae 64 counties
• 
  Polygonum cuspidatum Siebold & Zucc. Introduced POCU6

  Japanese knotweed · Polygonaceae 35 counties
• 
  Polygonum erectum L. Native POER2

  erect knotweed · Polygonaceae 38 counties
• 
  Polygonum fowleri B.L. Rob. Native POFO2

  Fowler's knotweed · Polygonaceae 1 county
• 
  Polygonum fowleri B.L. Rob. ssp. fowleri Native POFOF7

  Fowler's knotweed · Polygonaceae 1 county
• 
  Polygonum hydropiper L. Introduced POHY

  marshpepper knotweed · Polygonaceae 56 counties
• 
  Polygonum hydropiperoides Michx. Native POHY2

  swamp smartweed · Polygonaceae 56 counties
• 
  Polygonum lapathifolium L. Native POLA4

  curlytop knotweed · Polygonaceae 58 counties
• 
  Polygonum orientale L. Introduced POOR2

  kiss me over the garden gate · Polygonaceae 28 counties
• 
  Polygonum pensylvanicum L. Native POPE2

  Pennsylvania smartweed · Polygonaceae 83 counties
• 
  Polygonum perfoliatum L. Introduced POPE10

  Asiatic tearthumb · Polygonaceae 1 county
• 
  Polygonum persicaria L. Introduced POPE3

  spotted ladysthumb · Polygonaceae 73 counties
• 
  Polygonum punctatum Elliott Native POPU5

  dotted smartweed · Polygonaceae 62 counties
• 
  Polygonum punctatum Elliott var. confertiflorum (Meisn.) Fassett Native POPUC2

  dotted smartweed · Polygonaceae 2 counties
• 
  Polygonum punctatum Elliott var. punctatum Native POPUP4

  dotted smartweed · Polygonaceae 2 counties
• 
  Polygonum ramosissimum Michx. Native PORA3

  bushy knotweed · Polygonaceae 2 counties
• 
  Polygonum ramosissimum Michx. var. ramosissimum Native PORAR

  bushy knotweed · Polygonaceae 2 counties
• 
  Polygonum robustius (Small) Fernald Native PORO

  stout smartweed · Polygonaceae 2 counties
• 
  Polygonum sachalinense F. Schmidt ex Maxim. Introduced POSA4

  giant knotweed · Polygonaceae 7 counties
• 
  Polygonum sagittatum L. Native POSA5

  arrowleaf tearthumb · Polygonaceae 62 counties
• 
  Polygonum scandens L. Both POSC3

  climbing false buckwheat · Polygonaceae 69 counties
• 
  Polygonum scandens L. var. cristatum (Engelm. & A. Gray) Gleason Native POSCC

  climbing false buckwheat · Polygonaceae 4 counties
• 
  Polygonum scandens L. var. dumetorum (L.) Gleason Introduced POSCD

  climbing false buckwheat · Polygonaceae 3 counties
• 
  Polygonum tenue Michx. Native POTE2

  pleatleaf knotweed · Polygonaceae 11 counties
• 
  Polygonum virginianum L. Native POVI2

  jumpseed · Polygonaceae 83 counties
• 
  Polymnia canadensis L. Native POCA11

  whiteflower leafcup · Asteraceae 37 counties
• 
  Polypodium appalachianum Haufler & Windham Native POAP

  Appalachian polypody · Polypodiaceae 11 counties
• 
  Polypodium virginianum L. Native POVI7

  rock polypody · Polypodiaceae 44 counties
• ⚘
  Polypodium ×incognitum Cusick [appalachianum × virginianum] Native POIN6

  Hybrid rock polypody · Polypodiaceae 1 county
• 
  Polystichum acrostichoides (Michx.) Schott Native POAC4

  Christmas fern · Dryopteridaceae 80 counties
• 
  Polystichum acrostichoides (Michx.) Schott var. acrostichoides Native POACA

  Christmas fern · Dryopteridaceae 6 counties
• 
  Polystichum acrostichoides (Michx.) Schott var. lonchitoides Brooks Native POACL

  Christmas fern · Dryopteridaceae 2 counties
• 
  Pontederia cordata L. Native POCO14

  pickerelweed · Pontederiaceae 23 counties
• 
  Populus alba L. Introduced POAL7

  white poplar · Salicaceae 83 counties
• 
  Populus balsamifera L. Native POBA2

  balsam poplar · Salicaceae 4 counties
• 
  Populus balsamifera L. ssp. balsamifera Native POBAB2

  balsam poplar · Salicaceae 4 counties
• 
  Populus deltoides W. Bartram ex Marshall Native PODE3

  eastern cottonwood · Salicaceae 87 counties
• 
  Populus deltoides W. Bartram ex Marshall ssp. deltoides Native PODED

  eastern cottonwood · Salicaceae 3 counties
• 
  Populus grandidentata Michx. Native POGR4

  bigtooth aspen · Salicaceae 80 counties
• 
  Populus heterophylla L. Native POHE4

  swamp cottonwood · Salicaceae 22 counties
• 
  Populus nigra L. Introduced PONI

  Lombardy poplar · Salicaceae 21 counties
• 
  Populus tremuloides Michx. Native POTR5

  quaking aspen · Salicaceae 71 counties
• ⚘
  Populus ×jackii Sarg. [balsamifera × deltoides] Native POJA2

  balm-of-Gilead · Salicaceae 18 counties
• 
  Portulaca grandiflora Hook. Introduced POGR7

  rose moss · Portulacaceae 3 counties