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 301–350 of 2,969 (native).

• 
  Betula populifolia Marshall Native BEPO

  gray birch · Betulaceae 6 counties
• 
  Betula pumila L. Native BEPU4

  bog birch · Betulaceae 6 counties
• 
  Betula pumila L. var. glabra Regel Native BEPUG2

  bog birch · Betulaceae 1 county
• 
  Betula pumila L. var. glandulifera Regel Native BEPUG

  bog birch · Betulaceae 2 counties
• ⚘
  Betula ×purpusii C.K. Schneid. [alleghaniensis × pumila] Native BEPU3

  birch · Betulaceae 1 county
• ⚘
  Betula ×sandbergii Britton [papyrifera × pumila] Native BESA

  Sandberg birch · Betulaceae 2 counties
• 
  Bidens aristosa (Michx.) Britton Native BIAR

  bearded beggarticks · Asteraceae 86 counties
• 
  Bidens beckii Torr. ex Spreng. Native BIBE2

  Beck's water-marigold · Asteraceae 3 counties
• 
  Bidens bipinnata L. Native BIBI7

  Spanish needles · Asteraceae 64 counties
• 
  Bidens cernua L. Native BICE

  nodding beggartick · Asteraceae 84 counties
• 
  Bidens connata Muhl. ex Willd. Native BICO5

  purplestem beggarticks · Asteraceae 42 counties
• 
  Bidens coronata (L.) Britton Native BICO

  crowned beggarticks · Asteraceae 50 counties
• 
  Bidens discoidea (Torr. & A. Gray) Britton Native BIDI

  small beggarticks · Asteraceae 27 counties
• 
  Bidens frondosa L. Native BIFR

  devil's beggartick · Asteraceae 83 counties
• 
  Bidens tripartita L. Native BITR

  threelobe beggarticks · Asteraceae 81 counties
• 
  Bidens vulgata Greene Native BIVU

  big devils beggartick · Asteraceae 74 counties
• 
  Bignonia capreolata L. Native BICA

  crossvine · Bignoniaceae 17 counties
• 
  Blephilia ciliata (L.) Benth. Native BLCI

  downy pagoda-plant · Lamiaceae 61 counties
• 
  Blephilia hirsuta (Pursh) Benth. Native BLHI

  hairy pagoda-plant · Lamiaceae 67 counties
• 
  Blephilia hirsuta (Pursh) Benth. var. hirsuta Native BLHIH

  hairy pagoda-plant · Lamiaceae 67 counties
• 
  Boehmeria cylindrica (L.) Sw. Native BOCY

  smallspike false nettle · Urticaceae 89 counties
• 
  Bolboschoenus fluviatilis (Torr.) Soják Native BOFL3

  river bulrush · Cyperaceae 50 counties
• 
  Bolboschoenus maritimus (L.) Palla Native BOMA7

  cosmopolitan bulrush · Cyperaceae 2 counties
• 
  Boltonia asteroides (L.) L'Hér. Native BOAS

  white doll's daisy · Asteraceae 77 counties
• 
  Boltonia asteroides (L.) L'Hér. var. recognita (Fernald & Grisc.) Cronquist Native BOASR

  white doll's daisy · Asteraceae 77 counties
• 
  Boltonia decurrens (Torr. & A. Gray) Alph. Wood Native BODE2

  claspingleaf doll's daisy · Asteraceae 14 counties
• 
  Boltonia diffusa Elliott Native BODI

  smallhead doll's daisy · Asteraceae 26 counties
• 
  Bothriochloa laguroides (DC.) Herter ssp. torreyana (Steud.) Allred & Gould Native BOLAT

  silver beardgrass · Poaceae 6 counties
• 
  Botrychium biternatum (Sav.) Underw. Native BOBI

  sparselobe grapefern · Ophioglossaceae 4 counties
• 
  Botrychium dissectum Spreng. Native BODI2

  cutleaf grapefern · Ophioglossaceae 64 counties
• 
  Botrychium matricariifolium (A. Braun ex Dowell) A. Braun ex W.D.J. Koch Native BOMA2

  matricary grapefern · Ophioglossaceae 2 counties
• 
  Botrychium multifidum (S.G. Gmel.) Trevis. Native BOMU

  leathery grapefern · Ophioglossaceae 9 counties
• 
  Botrychium oneidense (Gilbert) House Native BOON

  bluntlobe grapefern · Ophioglossaceae 1 county
• 
  Botrychium simplex E. Hitchc. Native BOSI

  little grapefern · Ophioglossaceae 4 counties
• 
  Botrychium virginianum (L.) Sw. Native BOVI

  rattlesnake fern · Ophioglossaceae 102 counties
• 
  Bouteloua curtipendula (Michx.) Torr. Native BOCU

  sideoats grama · Poaceae 55 counties
• 
  Bouteloua curtipendula (Michx.) Torr. var. curtipendula Native BOCUC2

  sideoats grama · Poaceae 55 counties
• 
  Bouteloua dactyloides (Nutt.) J.T. Columbus Native BODA2

  buffalograss · Poaceae 9 counties
• 
  Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths Native BOGR2

  blue grama · Poaceae 5 counties
• 
  Bouteloua hirsuta Lag. Native BOHI2

  hairy grama · Poaceae 16 counties
• 
  Bouteloua hirsuta Lag. var. hirsuta Native BOHIH

  hairy grama · Poaceae 16 counties
• 
  Brachyelytrum erectum (Schreb. ex Spreng.) P. Beauv. Native BRER2

  bearded shorthusk · Poaceae 65 counties
• 
  Brasenia schreberi J.F. Gmel. Native BRSC

  watershield · Cabombaceae 15 counties
• 
  Brickellia eupatorioides (L.) Shinners Native BREU

  false boneset · Asteraceae 75 counties
• 
  Brickellia eupatorioides (L.) Shinners var. corymbulosa (Torr. & A. Gray) Shinners Native BREUC

  false boneset · Asteraceae 3 counties
• 
  Brickellia eupatorioides (L.) Shinners var. eupatorioides Native BREUE

  false boneset · Asteraceae 4 counties
• 
  Bromus ciliatus L. Native BRCI2

  fringed brome · Poaceae 47 counties
• 
  Bromus ciliatus L. var. ciliatus Native BRCIC3

  fringed brome · Poaceae 46 counties
• 
  Bromus kalmii A. Gray Native BRKA2

  arctic brome · Poaceae 18 counties
• 
  Bromus latiglumis (Shear) Hitchc. Native BRLA4

  earlyleaf brome · Poaceae 34 counties