New York

• Albany 36001
  1,960 taxa Open ↗
• Allegany 36003
  637 taxa Open ↗
• Bronx 36005
  2,098 taxa Open ↗
• Broome 36007
  421 taxa Open ↗
• Cattaraugus 36009
  1,554 taxa Open ↗
• Cayuga 36011
  1,055 taxa Open ↗
• Chautauqua 36013
  856 taxa Open ↗
• Chemung 36015
  1,296 taxa Open ↗
• Chenango 36017
  856 taxa Open ↗
• Clinton 36019
  943 taxa Open ↗

Showing 3,151–3,200 of 4,587.

• 
  Polygonella articulata (L.) Meisn. Native POAR4

  coastal jointweed · Polygonaceae 21 counties
• 
  Polygonum achoreum S.F. Blake Native POAC3

  leathery knotweed · Polygonaceae 15 counties
• 
  Polygonum amphibium L. Native POAM8

  water knotweed · Polygonaceae 56 counties
• 
  Polygonum amphibium L. var. emersum Michx. Native POAME

  longroot smartweed · Polygonaceae 45 counties
• 
  Polygonum amphibium L. var. stipulaceum Coleman Native POAMS

  water smartweed · Polygonaceae 43 counties
• 
  Polygonum arenastrum Jord. ex Boreau Introduced POAR11

  oval-leaf knotweed · Polygonaceae 43 counties
• 
  Polygonum arifolium L. Native POAR6

  halberdleaf tearthumb · Polygonaceae 40 counties
• 
  Polygonum aviculare L. Introduced POAV

  prostrate knotweed · Polygonaceae 43 counties
• 
  Polygonum baldschuanicum Regel Introduced POBA3

  Bukhara fleeceflower · Polygonaceae 3 counties
• 
  Polygonum bellardii All. Introduced POBE

  narrowleaf knotweed · Polygonaceae 18 counties
• 
  Polygonum buxiforme Small Native POBU2

  box knotweed · Polygonaceae 13 counties
• 
  Polygonum careyi Olney Native POCA8

  Carey's smartweed · Polygonaceae 20 counties
• 
  Polygonum cespitosum Blume var. cespitosum Introduced POCEC

  Oriental lady's thumb · Polygonaceae 1 county
• 
  Polygonum cespitosum Blume var. longisetum (Bruijn) A.N. Steward Introduced POCEL

  Oriental lady's thumb · Polygonaceae 26 counties
• 
  Polygonum cespitosum Blume, nom. inq. Introduced POCE4

  Oriental lady's thumb · Polygonaceae 26 counties
• 
  Polygonum cilinode Michx. Native POCI

  fringed black bindweed · Polygonaceae 42 counties
• 
  Polygonum convolvulus L. Introduced POCO10

  black bindweed · Polygonaceae 51 counties
• 
  Polygonum convolvulus L. var. convolvulus Introduced POCOC2

  black bindweed · Polygonaceae 50 counties
• 
  Polygonum cuspidatum Siebold & Zucc. Introduced POCU6

  Japanese knotweed · Polygonaceae 34 counties
• 
  Polygonum douglasii Greene Native PODO4

  Douglas' knotweed · Polygonaceae 8 counties
• 
  Polygonum douglasii Greene ssp. douglasii Native PODOD4

  Douglas' knotweed · Polygonaceae 8 counties
• 
  Polygonum erectum L. Native POER2

  erect knotweed · Polygonaceae 40 counties
• 
  Polygonum extremiorientale Vorosch. Introduced POEX2

  far-eastern smartweed · Polygonaceae 8 counties
• 
  Polygonum glaucum Nutt. Native POGL7

  seaside knotweed · Polygonaceae 6 counties
• 
  Polygonum hydropiper L. Introduced POHY

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

  swamp smartweed · Polygonaceae 46 counties
• 
  Polygonum lapathifolium L. Native POLA4

  curlytop knotweed · Polygonaceae 54 counties
• 
  Polygonum minus Huds. Introduced POMI21

  pygmy smartweed · Polygonaceae 1 county
• 
  Polygonum nepalense Meisn. Introduced PONE9

  Nepalese smartweed · Polygonaceae 2 counties
• 
  Polygonum orientale L. Introduced POOR2

  kiss me over the garden gate · Polygonaceae 29 counties
• 
  Polygonum pensylvanicum L. Native POPE2

  Pennsylvania smartweed · Polygonaceae 51 counties
• 
  Polygonum perfoliatum L. Introduced POPE10

  Asiatic tearthumb · Polygonaceae 10 counties
• 
  Polygonum persicaria L. Introduced POPE3

  spotted ladysthumb · Polygonaceae 50 counties
• 
  Polygonum polycnemoides Jaubert & Spach Introduced POPO3

  manyleg knotweed · Polygonaceae 2 counties
• 
  Polygonum punctatum Elliott Native POPU5

  dotted smartweed · Polygonaceae 47 counties
• 
  Polygonum punctatum Elliott var. confertiflorum (Meisn.) Fassett Native POPUC2

  dotted smartweed · Polygonaceae 40 counties
• 
  Polygonum punctatum Elliott var. punctatum Native POPUP4

  dotted smartweed · Polygonaceae 32 counties
• 
  Polygonum ramosissimum Michx. Native PORA3

  bushy knotweed · Polygonaceae 22 counties
• 
  Polygonum ramosissimum Michx. var. prolificum Small Native PORAP

  bushy knotweed · Polygonaceae 12 counties
• 
  Polygonum ramosissimum Michx. var. ramosissimum Native PORAR

  bushy knotweed · Polygonaceae 19 counties
• 
  Polygonum robustius (Small) Fernald Native PORO

  stout smartweed · Polygonaceae 28 counties
• 
  Polygonum sachalinense F. Schmidt ex Maxim. Introduced POSA4

  giant knotweed · Polygonaceae 14 counties
• 
  Polygonum sagittatum L. Native POSA5

  arrowleaf tearthumb · Polygonaceae 53 counties
• 
  Polygonum scandens L. Both POSC3

  climbing false buckwheat · Polygonaceae 44 counties
• 
  Polygonum scandens L. var. cristatum (Engelm. & A. Gray) Gleason Native POSCC

  climbing false buckwheat · Polygonaceae 13 counties
• 
  Polygonum scandens L. var. dumetorum (L.) Gleason Introduced POSCD

  climbing false buckwheat · Polygonaceae 22 counties
• 
  Polygonum scandens L. var. scandens Native POSCS

  climbing false buckwheat · Polygonaceae 40 counties
• 
  Polygonum setaceum Baldw. Native POSE6

  bog smartweed · Polygonaceae 22 counties
• 
  Polygonum tenue Michx. Native POTE2

  pleatleaf knotweed · Polygonaceae 17 counties
• 
  Polygonum virginianum L. Native POVI2

  jumpseed · Polygonaceae 49 counties