Illinois

• Adams 17001
  1,183 taxa Open ↗
• Alexander 17003
  1,220 taxa Open ↗
• Bond 17005
  682 taxa Open ↗
• Boone 17007
  1,163 taxa Open ↗
• Brown 17009
  836 taxa Open ↗
• Bureau 17011
  652 taxa Open ↗
• Calhoun 17013
  1,017 taxa Open ↗
• Carroll 17015
  931 taxa Open ↗
• Cass 17017
  1,389 taxa Open ↗
• Champaign 17019
  1,420 taxa Open ↗

Showing 2,651–2,700 of 3,775.

• 
  Polygala polygama Walter Native POPO

  racemed milkwort · Polygalaceae 20 counties
• 
  Polygala sanguinea L. Native POSA3

  purple milkwort · Polygalaceae 80 counties
• 
  Polygala senega L. Native POSE3

  Seneca snakeroot · Polygalaceae 39 counties
• 
  Polygala verticillata L. Native POVE

  whorled milkwort · Polygalaceae 73 counties
• 
  Polygala verticillata L. var. isocycla Fernald Native POVEI

  whorled milkwort · Polygalaceae 2 counties
• 
  Polygonatum biflorum (Walter) Elliott Native POBI2

  smooth Solomon's seal · Liliaceae 102 counties
• 
  Polygonatum biflorum (Walter) Elliott var. commutatum (Schult. & Schult. f.) Morong Native POBIC

  smooth Solomon's seal · Liliaceae 102 counties
• 
  Polygonatum pubescens (Willd.) Pursh Native POPU4

  hairy Solomon's seal · Liliaceae 8 counties
• 
  Polygonella americana (Fisch. & C.A. Mey.) Small Native POAM3

  southern jointweed · Polygonaceae 1 county
• 
  Polygonella articulata (L.) Meisn. Native POAR4

  coastal jointweed · Polygonaceae 13 counties
• 
  Polygonum achoreum S.F. Blake Native POAC3

  leathery knotweed · Polygonaceae 17 counties
• 
  Polygonum amphibium L. Native POAM8

  water knotweed · Polygonaceae 92 counties
• 
  Polygonum amphibium L. var. emersum Michx. Native POAME

  longroot smartweed · Polygonaceae 91 counties
• 
  Polygonum amphibium L. var. stipulaceum Coleman Native POAMS

  water smartweed · Polygonaceae 89 counties
• 
  Polygonum arenastrum Jord. ex Boreau Introduced POAR11

  oval-leaf knotweed · Polygonaceae 102 counties
• 
  Polygonum arifolium L. Native POAR6

  halberdleaf tearthumb · Polygonaceae 3 counties
• 
  Polygonum aviculare L. Introduced POAV

  prostrate knotweed · Polygonaceae 5 counties
• 
  Polygonum bellardii All. Introduced POBE

  narrowleaf knotweed · Polygonaceae 5 counties
• 
  Polygonum buxiforme Small Native POBU2

  box knotweed · Polygonaceae 23 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 19 counties
• 
  Polygonum cespitosum Blume, nom. inq. Introduced POCE4

  Oriental lady's thumb · Polygonaceae 19 counties
• 
  Polygonum convolvulus L. Introduced POCO10

  black bindweed · Polygonaceae 85 counties
• 
  Polygonum convolvulus L. var. convolvulus Introduced POCOC2

  black bindweed · Polygonaceae 85 counties
• 
  Polygonum cuspidatum Siebold & Zucc. Introduced POCU6

  Japanese knotweed · Polygonaceae 33 counties
• 
  Polygonum erectum L. Native POER2

  erect knotweed · Polygonaceae 50 counties
• 
  Polygonum glabrum Willd. Native POGL10

  denseflower knotweed · Polygonaceae 1 county
• 
  Polygonum hydropiper L. Introduced POHY

  marshpepper knotweed · Polygonaceae 75 counties
• 
  Polygonum hydropiperoides Michx. Native POHY2

  swamp smartweed · Polygonaceae 91 counties
• 
  Polygonum lapathifolium L. Native POLA4

  curlytop knotweed · Polygonaceae 93 counties
• 
  Polygonum orientale L. Introduced POOR2

  kiss me over the garden gate · Polygonaceae 27 counties
• 
  Polygonum pensylvanicum L. Native POPE2

  Pennsylvania smartweed · Polygonaceae 102 counties
• 
  Polygonum persicaria L. Introduced POPE3

  spotted ladysthumb · Polygonaceae 90 counties
• 
  Polygonum punctatum Elliott Native POPU5

  dotted smartweed · Polygonaceae 101 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 3 counties
• 
  Polygonum ramosissimum Michx. Native PORA3

  bushy knotweed · Polygonaceae 63 counties
• 
  Polygonum ramosissimum Michx. var. prolificum Small Native PORAP

  bushy knotweed · Polygonaceae 7 counties
• 
  Polygonum ramosissimum Michx. var. ramosissimum Native PORAR

  bushy knotweed · Polygonaceae 11 counties
• 
  Polygonum sachalinense F. Schmidt ex Maxim. Introduced POSA4

  giant knotweed · Polygonaceae 2 counties
• 
  Polygonum sagittatum L. Native POSA5

  arrowleaf tearthumb · Polygonaceae 52 counties
• 
  Polygonum scandens L. Both POSC3

  climbing false buckwheat · Polygonaceae 101 counties
• 
  Polygonum scandens L. var. cristatum (Engelm. & A. Gray) Gleason Native POSCC

  climbing false buckwheat · Polygonaceae 52 counties
• 
  Polygonum setaceum Baldw. Native POSE6

  bog smartweed · Polygonaceae 17 counties
• 
  Polygonum tenue Michx. Native POTE2

  pleatleaf knotweed · Polygonaceae 51 counties
• 
  Polygonum virginianum L. Native POVI2

  jumpseed · Polygonaceae 96 counties
• 
  Polymnia canadensis L. Native POCA11

  whiteflower leafcup · Asteraceae 55 counties
• 
  Polypodium virginianum L. Native POVI7

  rock polypody · Polypodiaceae 29 counties
• 
  Polypremum procumbens L. Native POPR4

  juniper leaf · Buddlejaceae 2 counties
• 
  Polystichum acrostichoides (Michx.) Schott Native POAC4

  Christmas fern · Dryopteridaceae 82 counties