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 1,601–1,650 of 3,775.

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  Gratiola virginiana L. var. virginiana Native GRVIV

  roundfruit hedgehyssop · Scrophulariaceae 35 counties
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  Grindelia lanceolata Nutt. Native GRLA3

  narrowleaf gumweed · Asteraceae 1 county
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  Grindelia lanceolata Nutt. var. lanceolata Native GRLAL

  narrowleaf gumweed · Asteraceae 1 county
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  Grindelia papposa G.L. Nesom & Suh Native GRPA8

  Spanish gold · Asteraceae 11 counties
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  Grindelia squarrosa (Pursh) Dunal Native GRSQ

  curlycup gumweed · Asteraceae 33 counties
• 
  Grindelia squarrosa (Pursh) Dunal var. squarrosa Native GRSQS2

  curlycup gumweed · Asteraceae 1 county
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  Gutierrezia texana (DC.) Torr. & A. Gray Native GUTE2

  Texas snakeweed · Asteraceae 1 county
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  Gutierrezia texana (DC.) Torr. & A. Gray var. texana Native GUTET

  Texas snakeweed · Asteraceae 1 county
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  Gymnocarpium dryopteris (L.) Newman Native GYDR

  western oakfern · Dryopteridaceae 6 counties
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  Gymnocarpium robertianum (Hoffm.) Newman Native GYRO

  scented oakfern · Dryopteridaceae 1 county
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  Gymnocladus dioicus (L.) K. Koch Native GYDI

  Kentucky coffeetree · Fabaceae 73 counties
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  Gymnopogon ambiguus (Michx.) Britton, Sterns & Poggenb. Native GYAM

  bearded skeletongrass · Poaceae 2 counties
• 
  Gypsophila elegans M. Bieb. Introduced GYEL

  showy baby's-breath · Caryophyllaceae 1 county
• 
  Gypsophila muralis L. Introduced GYMU

  low baby's-breath · Caryophyllaceae 1 county
• 
  Gypsophila paniculata L. Introduced GYPA

  baby's breath · Caryophyllaceae 4 counties
• 
  Gypsophila scorzonerifolia Ser. Introduced GYSC

  garden baby's-breath · Caryophyllaceae 4 counties
• 
  Hackelia deflexa (Wahlenb.) Opiz Native HADE

  nodding stickseed · Boraginaceae 4 counties
• 
  Hackelia deflexa (Wahlenb.) Opiz var. americana (A. Gray) Fernald & I.M. Johnst. Native HADEA

  American stickseed · Boraginaceae 4 counties
• 
  Hackelia virginiana (L.) I.M. Johnst. Native HAVI2

  beggarslice · Boraginaceae 79 counties
• 
  Halesia tetraptera Ellis Native HATE3

  mountain silverbell · Styracaceae 3 counties
• 
  Halesia tetraptera Ellis var. tetraptera Native HATET

  mountain silverbell · Styracaceae 2 counties
• 
  Hamamelis vernalis Sarg. Native HAVE2

  Ozark witchhazel · Hamamelidaceae 1 county
• 
  Hamamelis virginiana L. Native HAVI4

  American witchhazel · Hamamelidaceae 25 counties
• 
  Hasteola suaveolens (L.) Pojark. Native HASU3

  false Indian plantain · Asteraceae 15 counties
• 
  Hedeoma hispida Pursh Native HEHI

  rough false pennyroyal · Lamiaceae 56 counties
• 
  Hedeoma pulegioides (L.) Pers. Native HEPU

  American false pennyroyal · Lamiaceae 92 counties
• 
  Hedera helix L. Introduced HEHE

  English ivy · Araliaceae 1 county
• 
  Helenium amarum (Raf.) H. Rock Native HEAM

  sneezeweed · Asteraceae 33 counties
• 
  Helenium amarum (Raf.) H. Rock var. amarum Native HEAMA

  sneezeweed · Asteraceae 33 counties
• 
  Helenium autumnale L. Native HEAU

  common sneezeweed · Asteraceae 82 counties
• 
  Helenium autumnale L. var. autumnale Native HEAUA

  common sneezeweed · Asteraceae 82 counties
• 
  Helenium flexuosum Raf. Native HEFL

  purplehead sneezeweed · Asteraceae 48 counties
• 
  Helianthemum bicknellii Fernald Native HEBI2

  hoary frostweed · Cistaceae 46 counties
• 
  Helianthemum canadense (L.) Michx. Native HECA3

  longbranch frostweed · Cistaceae 28 counties
• 
  Helianthus angustifolius L. Native HEAN2

  swamp sunflower · Asteraceae 4 counties
• 
  Helianthus annuus L. Native HEAN3

  common sunflower · Asteraceae 74 counties
• 
  Helianthus ciliaris DC. Native HECI

  Texas blueweed · Asteraceae 1 county
• 
  Helianthus decapetalus L. Native HEDE

  thinleaf sunflower · Asteraceae 49 counties
• 
  Helianthus divaricatus L. Native HEDI2

  woodland sunflower · Asteraceae 84 counties
• 
  Helianthus giganteus L. Native HEGI

  giant sunflower · Asteraceae 7 counties
• 
  Helianthus grosseserratus M. Martens Native HEGR4

  sawtooth sunflower · Asteraceae 94 counties
• 
  Helianthus hirsutus Raf. Native HEHI2

  hairy sunflower · Asteraceae 66 counties
• 
  Helianthus maximiliani Schrad. Native HEMA2

  Maximilian sunflower · Asteraceae 16 counties
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  Helianthus microcephalus Torr. & A. Gray Native HEMI3

  small woodland sunflower · Asteraceae 18 counties
• 
  Helianthus mollis Lam. Native HEMO2

  ashy sunflower · Asteraceae 70 counties
• 
  Helianthus occidentalis Riddell Native HEOC2

  fewleaf sunflower · Asteraceae 47 counties
• 
  Helianthus occidentalis Riddell ssp. occidentalis Native HEOCO

  fewleaf sunflower · Asteraceae 47 counties
• 
  Helianthus pauciflorus Nutt. Native HEPA19

  stiff sunflower · Asteraceae 77 counties
• 
  Helianthus pauciflorus Nutt. ssp. pauciflorus Native HEPAP2

  stiff sunflower · Asteraceae 77 counties
• 
  Helianthus petiolaris Nutt. Native HEPE

  prairie sunflower · Asteraceae 46 counties