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 2,601–2,650 of 3,775.

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  Platanthera clavellata (Michx.) Luer Native PLCL

  small green wood orchid · Orchidaceae 6 counties
• 
  Platanthera dilatata (Pursh) Lindl. ex Beck Native PLDI3

  scentbottle · Orchidaceae 4 counties
• 
  Platanthera dilatata (Pursh) Lindl. ex Beck var. dilatata Native PLDID

  scentbottle · Orchidaceae 4 counties
• 
  Platanthera flava (L.) Lindl. Native PLFL

  palegreen orchid · Orchidaceae 16 counties
• 
  Platanthera flava (L.) Lindl. var. flava Native PLFLF

  palegreen orchid · Orchidaceae 5 counties
• 
  Platanthera flava (L.) Lindl. var. herbiola (R. Br.) Luer Native PLFLH

  palegreen orchid · Orchidaceae 13 counties
• 
  Platanthera hookeri (Torr. ex A. Gray) Lindl. Native PLHO3

  Hooker's orchid · Orchidaceae 3 counties
• 
  Platanthera huronensis (Nutt.) Lindl. Native PLHU2

  Huron green orchid · Orchidaceae 11 counties
• 
  Platanthera lacera (Michx.) G. Don Native PLLA2

  green fringed orchid · Orchidaceae 23 counties
• 
  Platanthera leucophaea (Nutt.) Lindl. Native PLLE2

  prairie white fringed orchid · Orchidaceae 32 counties
• 
  Platanthera orbiculata (Pursh) Lindl. Native PLOR4

  lesser roundleaved orchid · Orchidaceae 2 counties
• 
  Platanthera peramoena (A. Gray) A. Gray Native PLPE

  purple fringeless orchid · Orchidaceae 29 counties
• 
  Platanthera psycodes (L.) Lindl. Native PLPS2

  lesser purple fringed orchid · Orchidaceae 3 counties
• 
  Platanus occidentalis L. Native PLOC

  American sycamore · Platanaceae 102 counties
• 
  Pleopeltis polypodioides (L.) Andrews & Windham Native PLPO2

  resurrection fern · Polypodiaceae 16 counties
• 
  Pleopeltis polypodioides (L.) Andrews & Windham ssp. michauxiana (Weath.) Andrews & Windham Native PLPOM

  resurrection fern · Polypodiaceae 16 counties
• 
  Pluchea camphorata (L.) DC. Native PLCA7

  camphor pluchea · Asteraceae 25 counties
• 
  Pluchea odorata (L.) Cass. Native PLOD

  sweetscent · Asteraceae 1 county
• 
  Pluchea odorata (L.) Cass. var. succulenta (Fernald) Cronquist Native PLODS

  sweetscent · Asteraceae 1 county
• 
  Poa alsodes A. Gray Native POAL3

  grove bluegrass · Poaceae 3 counties
• 
  Poa annua L. Introduced POAN

  annual bluegrass · Poaceae 77 counties
• 
  Poa arachnifera Torr. Native POAR

  Texas bluegrass · Poaceae 1 county
• 
  Poa autumnalis Muhl. ex Elliott Native POAU

  autumn bluegrass · Poaceae 3 counties
• 
  Poa bulbosa L. Introduced POBU

  bulbous bluegrass · Poaceae 5 counties
• 
  Poa chapmaniana Scribn. Native POCH2

  Chapman's bluegrass · Poaceae 63 counties
• 
  Poa compressa L. Introduced POCO

  Canada bluegrass · Poaceae 102 counties
• 
  Poa nemoralis L. Both PONE

  wood bluegrass · Poaceae 2 counties
• 
  Poa paludigena Fernald & Wiegand Native POPA

  bog bluegrass · Poaceae 1 county
• 
  Poa palustris L. Native POPA2

  fowl bluegrass · Poaceae 24 counties
• 
  Poa pratensis L. Both POPR

  Kentucky bluegrass · Poaceae 102 counties
• 
  Poa pratensis L. ssp. pratensis Introduced POPRP2

  Kentucky bluegrass · Poaceae 102 counties
• 
  Poa saltuensis Fernald & Wiegand Native POSA

  oldpasture bluegrass · Poaceae 3 counties
• 
  Poa sylvestris A. Gray Native POSY

  woodland bluegrass · Poaceae 73 counties
• 
  Poa trivialis L. Introduced POTR2

  rough bluegrass · Poaceae 5 counties
• 
  Poa wolfii Scribn. Native POWO

  Wolf's bluegrass · Poaceae 6 counties
• 
  Podophyllum peltatum L. Native POPE

  mayapple · Berberidaceae 102 counties
• 
  Pogonia ophioglossoides (L.) Ker Gawl. Native POOP

  snakemouth orchid · Orchidaceae 6 counties
• 
  Polanisia dodecandra (L.) DC. Native PODO3

  redwhisker clammyweed · Capparaceae 85 counties
• 
  Polanisia dodecandra (L.) DC. ssp. dodecandra Native PODOD

  redwhisker clammyweed · Capparaceae 84 counties
• 
  Polanisia dodecandra (L.) DC. ssp. trachysperma (Torr. & A. Gray) Iltis Native PODOT

  sandyseed clammyweed · Capparaceae 10 counties
• 
  Polanisia jamesii (Torr. & A. Gray) Iltis Native POJA3

  James' clammyweed · Capparaceae 5 counties
• 
  Polemonium reptans L. Native PORE2

  Greek valerian · Polemoniaceae 83 counties
• 
  Polemonium reptans L. var. reptans Native PORER

  Greek valerian · Polemoniaceae 83 counties
• 
  Polemonium reptans L. var. villosum E.L. Braun Native POREV

  Greek valerian · Polemoniaceae 1 county
• 
  Polycnemum majus A. Braun Introduced POMA24

  giant needleleaf · Chenopodiaceae 1 county
• 
  Polygala ambigua Nutt. Native POAM9

  whorled milkwort · Polygalaceae 1 county
• 
  Polygala cruciata L. Native POCR

  drumheads · Polygalaceae 12 counties
• 
  Polygala cruciata L. var. aquilonia Fernald & B.G. Schub. Native POCRA

  drumheads · Polygalaceae 12 counties
• 
  Polygala incarnata L. Native POIN4

  procession flower · Polygalaceae 14 counties
• 
  Polygala paucifolia Willd. Native POPA5

  gaywings · Polygalaceae 1 county