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 1,251–1,300 of 3,775.

• 
  Dryopteris intermedia (Muhl. ex Willd.) A. Gray Native DRIN5

  intermediate woodfern · Dryopteridaceae 29 counties
• 
  Dryopteris marginalis (L.) A. Gray Native DRMA4

  marginal woodfern · Dryopteridaceae 35 counties
• ⚘
  Dryopteris ×boottii (Tuck.) Underw. (pro sp.) [cristata × intermedia] Native DRBO2

  woodfern · Dryopteridaceae 1 county
• ⚘
  Dryopteris ×neowherryi W.H. Wagner [goldiana × marginalis] Native DRNE2

  woodfern · Dryopteridaceae 1 county
• ⚘
  Dryopteris ×triploidea Wherry [carthusiana × intermedia] Native DRTR

  woodfern · Dryopteridaceae 1 county
• 
  Duchesnea indica (Andrews) Teschem. Introduced DUIN2

  Indian strawberry · Rosaceae 10 counties
• 
  Dulichium arundinaceum (L.) Britton Native DUAR3

  three-way sedge · Cyperaceae 23 counties
• 
  Dulichium arundinaceum (L.) Britton var. arundinaceum Native DUARA

  three-way sedge · Cyperaceae 23 counties
• 
  Dysphania ambrosioides (L.) Mosyakin & Clemants Both DYAM

  Mexican tea · Chenopodiaceae 66 counties
• 
  Dysphania botrys (L.) Mosyakin & Clemants Introduced DYBO

  Jerusalem oak goosefoot · Chenopodiaceae 27 counties
• 
  Dysphania pumilio (R. Br.) Mosyakin & Clemants Introduced DYPU

  clammy goosefoot · Chenopodiaceae 1 county
• 
  Dyssodia papposa (Vent.) Hitchc. Native DYPA

  fetid marigold · Asteraceae 39 counties
• 
  Echinacea pallida (Nutt.) Nutt. Native ECPA

  pale purple coneflower · Asteraceae 77 counties
• 
  Echinacea purpurea (L.) Moench Native ECPU

  eastern purple coneflower · Asteraceae 43 counties
• 
  Echinochloa colona (L.) Link Introduced ECCO2

  jungle rice · Poaceae 4 counties
• 
  Echinochloa crus-galli (L.) P. Beauv. Introduced ECCR

  barnyardgrass · Poaceae 14 counties
• ⚘
  Echinochloa frumentacea Link Introduced ECFR

  billion-dollar grass · Poaceae 4 counties
• 
  Echinochloa muricata (P. Beauv.) Fernald Native ECMU2

  rough barnyardgrass · Poaceae 102 counties
• 
  Echinochloa muricata (P. Beauv.) Fernald var. microstachya Wiegand Native ECMUM

  rough barnyardgrass · Poaceae 102 counties
• 
  Echinochloa muricata (P. Beauv.) Fernald var. muricata Native ECMUM2

  rough barnyardgrass · Poaceae 102 counties
• 
  Echinochloa walteri (Pursh) A. Heller Native ECWA

  coast cockspur grass · Poaceae 23 counties
• 
  Echinocystis lobata (Michx.) Torr. & A. Gray Native ECLO

  wild cucumber · Cucurbitaceae 44 counties
• 
  Echinodorus berteroi (Spreng.) Fassett Native ECBE2

  upright burhead · Alismataceae 33 counties
• 
  Echinodorus cordifolius (L.) Griseb. Native ECCO3

  creeping burhead · Alismataceae 31 counties
• 
  Echinodorus tenellus (Mart. ex Schult. f.) Buchenau Native ECTE2

  mudbabies · Alismataceae 4 counties
• 
  Echinops sphaerocephalus L. Introduced ECSP

  great globethistle · Asteraceae 7 counties
• 
  Echium vulgare L. Introduced ECVU

  common viper's bugloss · Boraginaceae 13 counties
• 
  Eclipta prostrata (L.) L. Native ECPR

  false daisy · Asteraceae 86 counties
• 
  Egeria densa Planch. Introduced EGDE

  Brazilian waterweed · Hydrocharitaceae 4 counties
• 
  Eichhornia crassipes (Mart.) Solms Introduced EICR

  common water hyacinth · Pontederiaceae 1 county
• 
  Elaeagnus angustifolia L. Introduced ELAN

  Russian olive · Elaeagnaceae 11 counties
• 
  Elaeagnus multiflora Thunb. Introduced ELMU

  cherry silverberry · Elaeagnaceae 2 counties
• 
  Elaeagnus umbellata Thunb. Introduced ELUM

  autumn olive · Elaeagnaceae 8 counties
• 
  Elaeagnus umbellata Thunb. var. parvifolia (Wall. ex Royle) C.K. Schneid. Introduced ELUMP

  autumn olive · Elaeagnaceae 8 counties
• 
  Elatine brachysperma A. Gray Native ELBR5

  shortseed waterwort · Elatinaceae 2 counties
• 
  Eleocharis acicularis (L.) Roem. & Schult. Native ELAC

  needle spikerush · Cyperaceae 48 counties
• 
  Eleocharis acicularis (L.) Roem. & Schult. var. acicularis Native ELACA

  needle spikerush · Cyperaceae 1 county
• 
  Eleocharis compressa Sull. Native ELCO2

  flatstem spikerush · Cyperaceae 35 counties
• 
  Eleocharis compressa Sull. var. compressa Native ELCOC2

  flatstem spikerush · Cyperaceae 35 counties
• 
  Eleocharis elliptica Kunth Native ELEL4

  elliptic spikerush · Cyperaceae 26 counties
• 
  Eleocharis engelmannii Steud. Native ELEN

  Engelmann's spikerush · Cyperaceae 56 counties
• 
  Eleocharis equisetoides (Elliott) Torr. Native ELEQ

  jointed spikesedge · Cyperaceae 2 counties
• 
  Eleocharis erythropoda Steud. Native ELER

  bald spikerush · Cyperaceae 55 counties
• 
  Eleocharis geniculata (L.) Roem. & Schult. Native ELGE

  Canada spikesedge · Cyperaceae 2 counties
• 
  Eleocharis intermedia Schult. Native ELIN

  matted spikerush · Cyperaceae 16 counties
• 
  Eleocharis melanocarpa Torr. Native ELME

  blackfruit spikerush · Cyperaceae 1 county
• 
  Eleocharis obtusa (Willd.) Schult. Native ELOB2

  blunt spikerush · Cyperaceae 77 counties
• ⚘
  Eleocharis olivacea Torr. Native ELOL

  bright green spikerush · Cyperaceae 3 counties
• ⚘
  Eleocharis olivacea Torr. var. olivacea Native ELOLO

  bright green spikerush · Cyperaceae 3 counties
• 
  Eleocharis palustris (L.) Roem. & Schult. Native ELPA3

  common spikerush · Cyperaceae 46 counties