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 151–200 of 3,775.

• 
  Ammannia coccinea Rottb. Native AMCO

  valley redstem · Lythraceae 78 counties
• 
  Ammannia robusta Heer & Regel Native AMRO3

  grand redstem · Lythraceae 5 counties
• 
  Ammophila breviligulata Fernald Native AMBR

  American beachgrass · Poaceae 2 counties
• 
  Amorpha canescens Pursh Native AMCA6

  leadplant · Fabaceae 68 counties
• 
  Amorpha fruticosa L. Native AMFR

  false indigo bush · Fabaceae 84 counties
• 
  Amorpha nitens Boynt. Native AMNI

  shining false indigo · Fabaceae 1 county
• 
  Ampelopsis cordata Michx. Native AMCO2

  heartleaf peppervine · Vitaceae 40 counties
• 
  Amphiachyris dracunculoides (DC.) Nutt. Native AMDR

  prairie broomweed · Asteraceae 2 counties
• 
  Amphicarpaea bracteata (L.) Fernald Native AMBR2

  American hogpeanut · Fabaceae 85 counties
• 
  Amphicarpaea bracteata (L.) Fernald var. comosa Native AMBRC

  American hogpeanut · Fabaceae 54 counties
• 
  Amsinckia lycopsoides Lehm. Native AMLY

  tarweed fiddleneck · Boraginaceae 1 county
• 
  Amsinckia spectabilis Fisch. & C.A. Mey. Native AMSP3

  woolly breeches · Boraginaceae 2 counties
• 
  Amsonia tabernaemontana Walter Native AMTA2

  eastern bluestar · Apocynaceae 51 counties
• 
  Amsonia tabernaemontana Walter var. salicifolia (Pursh) Woodson Native AMTAS

  eastern bluestar · Apocynaceae 3 counties
• 
  Amsonia tabernaemontana Walter var. tabernaemontana Native AMTAT

  eastern bluestar · Apocynaceae 3 counties
• 
  Anagallis arvensis L. Introduced ANAR

  scarlet pimpernel · Primulaceae 26 counties
• 
  Anagallis arvensis L. ssp. arvensis Introduced ANARA7

  scarlet pimpernel · Primulaceae 26 counties
• 
  Anagallis minima (L.) Krause Native ANMI4

  chaffweed · Primulaceae 12 counties
• 
  Anaphalis margaritacea (L.) Benth. Native ANMA

  western pearly everlasting · Asteraceae 1 county
• 
  Anchusa officinalis L. Introduced ANOF

  common bugloss · Boraginaceae 1 county
• 
  Andromeda polifolia L. Native ANPO

  bog rosemary · Ericaceae 2 counties
• 
  Andromeda polifolia L. var. glaucophylla (Link) DC. Native ANPOG

  bog rosemary · Ericaceae 2 counties
• 
  Andropogon gerardii Vitman Native ANGE

  big bluestem · Poaceae 102 counties
• 
  Andropogon gyrans Ashe Native ANGY2

  Elliott's bluestem · Poaceae 14 counties
• 
  Andropogon gyrans Ashe var. gyrans Native ANGYG

  Elliott's bluestem · Poaceae 14 counties
• 
  Andropogon hallii Hack. Native ANHA

  sand bluestem · Poaceae 1 county
• 
  Andropogon ternarius Michx. Native ANTE2

  splitbeard bluestem · Poaceae 4 counties
• 
  Andropogon ternarius Michx. var. ternarius Native ANTET

  splitbeard bluestem · Poaceae 4 counties
• 
  Andropogon virginicus L. Native ANVI2

  broomsedge bluestem · Poaceae 66 counties
• 
  Andropogon virginicus L. var. virginicus Native ANVIV

  broomsedge bluestem · Poaceae 66 counties
• 
  Androsace occidentalis Pursh Native ANOC2

  western rockjasmine · Primulaceae 43 counties
• 
  Anemone canadensis L. Native ANCA8

  Canadian anemone · Ranunculaceae 67 counties
• 
  Anemone caroliniana Walter Native ANCA9

  Carolina anemone · Ranunculaceae 20 counties
• 
  Anemone cylindrica A. Gray Native ANCY

  candle anemone · Ranunculaceae 48 counties
• 
  Anemone quinquefolia L. Native ANQU

  wood anemone · Ranunculaceae 22 counties
• 
  Anemone quinquefolia L. var. bifolia Farw. Native ANQUB2

  twoleaf anemone · Ranunculaceae 22 counties
• 
  Anemone virginiana L. Native ANVI3

  tall thimbleweed · Ranunculaceae 96 counties
• 
  Anemone virginiana L. var. virginiana Native ANVIV2

  tall thimbleweed · Ranunculaceae 96 counties
• 
  Anethum graveolens L. Introduced ANGR2

  dill · Apiaceae 16 counties
• 
  Angelica atropurpurea L. Native ANAT

  purplestem angelica · Apiaceae 30 counties
• 
  Angelica venenosa (Greenway) Fernald Native ANVE

  hairy angelica · Apiaceae 8 counties
• 
  Anoda cristata (L.) Schltdl. Native ANCR2

  crested anoda · Malvaceae 2 counties
• 
  Antennaria howellii Greene Native ANHO

  Howell's pussytoes · Asteraceae 4 counties
• 
  Antennaria howellii Greene ssp. neodioica (Greene) Bayer Native ANHON

  Howell's pussytoes · Asteraceae 4 counties
• ⚘
  Antennaria neglecta Greene Native ANNE

  field pussytoes · Asteraceae 68 counties
• 
  Antennaria parlinii Fernald Native ANPA9

  Parlin's pussytoes · Asteraceae 43 counties
• 
  Antennaria parlinii Fernald ssp. fallax (Greene) Bayer & Stebbins Native ANPAF

  Parlin's pussytoes · Asteraceae 36 counties
• 
  Antennaria parlinii Fernald ssp. parlinii Native ANPAP

  Parlin's pussytoes · Asteraceae 14 counties
• 
  Antennaria plantaginifolia (L.) Richardson Native ANPL

  woman's tobacco · Asteraceae 94 counties
• 
  Anthemis arvensis L. Introduced ANAR6

  corn chamomile · Asteraceae 9 counties