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 1,101–1,150 of 3,775.

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  Cystopteris laurentiana (Weath.) Blasdell Native CYLA4

  St. Lawrence bladderfern · Dryopteridaceae 1 county
• 
  Cystopteris protrusa (Weath.) Blasdell Native CYPR4

  lowland bladderfern · Dryopteridaceae 102 counties
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  Cystopteris tennesseensis Shaver Native CYTE3

  Tennessee bladderfern · Dryopteridaceae 34 counties
• 
  Cystopteris tenuis (Michx.) Desv. Native CYTE7

  upland brittle bladderfern · Dryopteridaceae 7 counties
• ⚘
  Cystopteris ×illinoensis R.C. Moran [bulbifera × tenuis] Native CYIL

  bladderfern · Dryopteridaceae 1 county
• 
  Dactylis glomerata L. Introduced DAGL

  orchardgrass · Poaceae 102 counties
• 
  Dactylis glomerata L. ssp. glomerata Introduced DAGLG

  orchardgrass · Poaceae 102 counties
• 
  Dactyloctenium aegyptium (L.) Willd. Introduced DAAE

  Egyptian grass · Poaceae 1 county
• 
  Dactylorhiza viridis (L.) R.M. Bateman, A.M. Pridgeon & M.W. Chase Native DAVI6

  longbract frog orchid · Orchidaceae 17 counties
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  Dalea candida Michx. ex Willd. Native DACA7

  white prairie clover · Fabaceae 64 counties
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  Dalea candida Michx. ex Willd. var. candida Native DACAC

  white prairie clover · Fabaceae 64 counties
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  Dalea foliosa (A. Gray) Barneby Native DAFO2

  leafy prairie clover · Fabaceae 6 counties
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  Dalea leporina (Aiton) Bullock Native DALE3

  foxtail prairie clover · Fabaceae 13 counties
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  Dalea purpurea Vent. Native DAPU5

  purple prairie clover · Fabaceae 74 counties
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  Dalea purpurea Vent. var. purpurea Native DAPUP

  purple prairie clover · Fabaceae 74 counties
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  Danthonia spicata (L.) P. Beauv. ex Roem. & Schult. Native DASP2

  poverty oatgrass · Poaceae 76 counties
• 
  Dasiphora fruticosa (L.) Rydb. Native DAFR6

  shrubby cinquefoil · Rosaceae 8 counties
• 
  Dasiphora fruticosa (L.) Rydb. ssp. floribunda (Pursh) Kartesz Native DAFRF

  shrubby cinquefoil · Rosaceae 8 counties
• 
  Dasistoma macrophylla (Nutt.) Raf. Native DAMA

  mullein foxglove · Scrophulariaceae 63 counties
• 
  Datura stramonium L. Introduced DAST

  jimsonweed · Solanaceae 83 counties
• 
  Datura wrightii Regel Native DAWR2

  sacred thorn-apple · Solanaceae 10 counties
• 
  Daucus carota L. Introduced DACA6

  Queen Anne's lace · Apiaceae 102 counties
• 
  Daucus pusillus Michx. Native DAPU3

  American wild carrot · Apiaceae 2 counties
• 
  Decodon verticillatus (L.) Elliott Native DEVE

  swamp loosestrife · Lythraceae 18 counties
• 
  Delphinium carolinianum Walter Native DECA3

  Carolina larkspur · Ranunculaceae 7 counties
• 
  Delphinium carolinianum Walter ssp. carolinianum Native DECAC3

  Carolina larkspur · Ranunculaceae 7 counties
• 
  Delphinium carolinianum Walter ssp. virescens (Nutt.) R.E. Brooks Native DECAV2

  Carolina larkspur · Ranunculaceae 1 county
• 
  Delphinium tricorne Michx. Native DETR

  dwarf larkspur · Ranunculaceae 71 counties
• 
  Dennstaedtia punctilobula (Michx.) T. Moore Native DEPU2

  eastern hayscented fern · Dennstaedtiaceae 3 counties
• 
  Deparia acrostichoides (Sw.) M. Kato Native DEAC4

  silver false spleenwort · Dryopteridaceae 46 counties
• 
  Deschampsia cespitosa (L.) P. Beauv. Native DECE

  tufted hairgrass · Poaceae 7 counties
• 
  Descurainia pinnata (Walter) Britton Native DEPI

  western tansymustard · Brassicaceae 87 counties
• 
  Descurainia pinnata (Walter) Britton ssp. brachycarpa (Richardson) Detling Native DEPIB

  western tansymustard · Brassicaceae 87 counties
• 
  Descurainia sophia (L.) Webb ex Prantl Introduced DESO2

  herb sophia · Brassicaceae 24 counties
• 
  Desmanthus illinoensis (Michx.) MacMill. ex B.L. Rob. & Fernald Native DEIL

  Illinois bundleflower · Fabaceae 43 counties
• 
  Desmodium canadense (L.) DC. Native DECA7

  showy ticktrefoil · Fabaceae 77 counties
• 
  Desmodium canescens (L.) DC. Native DECA8

  hoary ticktrefoil · Fabaceae 62 counties
• 
  Desmodium ciliare (Muhl. ex Willd.) DC. Native DECI

  hairy small-leaf ticktrefoil · Fabaceae 36 counties
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  Desmodium ciliare (Muhl. ex Willd.) DC. var. ciliare Native DECIC

  hairy small-leaf ticktrefoil · Fabaceae 36 counties
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  Desmodium cuspidatum (Muhl. ex Willd.) DC. ex D. Don Native DECU

  largebract ticktrefoil · Fabaceae 72 counties
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  Desmodium cuspidatum (Muhl. ex Willd.) DC. ex D. Don var. cuspidatum Native DECUC

  largebract ticktrefoil · Fabaceae 63 counties
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  Desmodium cuspidatum (Muhl. ex Willd.) DC. ex D. Don var. longifolium (Torr. & A. Gray) B.G. Schub. Native DECUL

  largebract ticktrefoil · Fabaceae 41 counties
• 
  Desmodium glabellum (Michx.) DC. Native DEGL4

  Dillenius' ticktrefoil · Fabaceae 69 counties
• 
  Desmodium glutinosum (Muhl. ex Willd.) Alph. Wood Native DEGL5

  pointedleaf ticktrefoil · Fabaceae 84 counties
• 
  Desmodium illinoense A. Gray Native DEIL2

  Illinois ticktrefoil · Fabaceae 79 counties
• 
  Desmodium laevigatum (Nutt.) DC. Native DELA2

  smooth ticktrefoil · Fabaceae 21 counties
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  Desmodium marilandicum (L.) DC. Native DEMA2

  smooth small-leaf ticktrefoil · Fabaceae 28 counties
• 
  Desmodium nudiflorum (L.) DC. Native DENU4

  nakedflower ticktrefoil · Fabaceae 58 counties
• 
  Desmodium nuttallii (Schindl.) B.G. Schub. Native DENU5

  Nuttall's ticktrefoil · Fabaceae 24 counties
• 
  Desmodium obtusum (Muhl. ex Willd.) DC. Native DEOB5

  stiff ticktrefoil · Fabaceae 27 counties