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 3,301–3,350 of 3,775.

• 
  Solidago radula Nutt. Native SORA

  western rough goldenrod · Asteraceae 23 counties
• 
  Solidago radula Nutt. var. radula Native SORAR

  western rough goldenrod · Asteraceae 23 counties
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  Solidago rugosa Mill. Native SORU2

  wrinkleleaf goldenrod · Asteraceae 23 counties
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  Solidago rugosa Mill. ssp. aspera (Aiton) Cronquist Native SORUA

  wrinkleleaf goldenrod · Asteraceae 15 counties
• 
  Solidago sciaphila Steele Native SOSC

  shadowy goldenrod · Asteraceae 4 counties
• 
  Solidago sempervirens L. Native SOSE

  seaside goldenrod · Asteraceae 2 counties
• 
  Solidago sempervirens L. var. sempervirens Native SOSES

  seaside goldenrod · Asteraceae 2 counties
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  Solidago simplex Kunth Native SOSI3

  Mt. Albert goldenrod · Asteraceae 1 county
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  Solidago simplex Kunth ssp. randii (Porter) Ringius Native SOSIR

  Rand's goldenrod · Asteraceae 1 county
• 
  Solidago simplex Kunth ssp. randii (Porter) Ringius var. gillmanii (A. Gray) Ringius Native SOSIG2

  Rand's goldenrod · Asteraceae 1 county
• 
  Solidago speciosa Nutt. Native SOSP2

  showy goldenrod · Asteraceae 69 counties
• 
  Solidago sphacelata Raf. Native SOSP4

  autumn goldenrod · Asteraceae 4 counties
• 
  Solidago uliginosa Nutt. Native SOUL

  bog goldenrod · Asteraceae 18 counties
• 
  Solidago uliginosa Nutt. var. uliginosa Native SOULU

  bog goldenrod · Asteraceae 1 county
• 
  Solidago ulmifolia Muhl. ex Willd. Native SOUL2

  elmleaf goldenrod · Asteraceae 100 counties
• 
  Solidago ulmifolia Muhl. ex Willd. var. palmeri Cronquist Native SOULP2

  Palmer's goldenrod · Asteraceae 1 county
• 
  Solidago ulmifolia Muhl. ex Willd. var. ulmifolia Native SOULU2

  elmleaf goldenrod · Asteraceae 100 counties
• 
  Sonchus arvensis L. Introduced SOAR2

  field sowthistle · Asteraceae 36 counties
• 
  Sonchus arvensis L. ssp. arvensis Introduced SOARA2

  field sowthistle · Asteraceae 15 counties
• 
  Sonchus arvensis L. ssp. uliginosus (M. Bieb.) Nyman Introduced SOARU

  moist sowthistle · Asteraceae 32 counties
• 
  Sonchus asper (L.) Hill Introduced SOAS

  spiny sowthistle · Asteraceae 46 counties
• 
  Sonchus oleraceus L. Introduced SOOL

  common sowthistle · Asteraceae 55 counties
• 
  Sorbus americana Marshall Native SOAM3

  American mountain ash · Rosaceae 1 county
• 
  Sorbus aucuparia L. Introduced SOAU

  European mountain ash · Rosaceae 8 counties
• 
  Sorghastrum nutans (L.) Nash Native SONU2

  Indiangrass · Poaceae 102 counties
• ⚘
  Sorghum almum Parodi Introduced SOAL

  Columbus grass · Poaceae 4 counties
• 
  Sorghum bicolor (L.) Moench Introduced SOBI2

  sorghum · Poaceae 46 counties
• 
  Sorghum bicolor (L.) Moench ssp. drummondii (Nees ex Steud.) de Wet & Harlan Introduced SOBID

  Sudangrass · Poaceae 1 county
• 
  Sorghum halepense (L.) Pers. Introduced SOHA

  Johnsongrass · Poaceae 69 counties
• 
  Sparganium americanum Nutt. Native SPAM

  American bur-reed · Sparganiaceae 8 counties
• 
  Sparganium androcladum (Engelm.) Morong Native SPAN

  branched bur-reed · Sparganiaceae 8 counties
• 
  Sparganium angustifolium Michx. Native SPAN2

  narrowleaf bur-reed · Sparganiaceae 2 counties
• 
  Sparganium eurycarpum Engelm. Native SPEU

  broadfruit bur-reed · Sparganiaceae 49 counties
• 
  Sparganium natans L. Native SPNA

  small bur-reed · Sparganiaceae 1 county
• 
  Spartina pectinata Bosc ex Link Native SPPE

  prairie cordgrass · Poaceae 89 counties
• 
  Spergula arvensis L. Introduced SPAR

  corn spurry · Caryophyllaceae 3 counties
• 
  Spergularia maritima (All.) Chiov. Introduced SPMA10

  media sandspurry · Caryophyllaceae 7 counties
• 
  Spergularia rubra (L.) J. Presl & C. Presl Introduced SPRU

  red sandspurry · Caryophyllaceae 2 counties
• 
  Spermacoce glabra Michx. Native SPGL2

  smooth false buttonweed · Rubiaceae 52 counties
• 
  Spermolepis echinata (Nutt. ex DC.) A. Heller Native SPEC2

  bristly scaleseed · Apiaceae 5 counties
• 
  Spermolepis inermis (Nutt. ex DC.) Mathias & Constance Native SPIN

  Red River scaleseed · Apiaceae 16 counties
• 
  Sphenopholis intermedia (Rydb.) Rydb. Native SPIN3

  slender wedgescale · Poaceae 92 counties
• 
  Sphenopholis nitida (Biehler) Scribn. Native SPNI

  shiny wedgescale · Poaceae 15 counties
• 
  Sphenopholis obtusata (Michx.) Scribn. Native SPOB

  prairie wedgescale · Poaceae 71 counties
• 
  Spigelia marilandica (L.) L. Native SPMA3

  woodland pinkroot · Loganiaceae 15 counties
• 
  Spiraea alba Du Roi Native SPAL2

  white meadowsweet · Rosaceae 36 counties
• 
  Spiraea alba Du Roi var. alba Native SPALA

  white meadowsweet · Rosaceae 3 counties
• 
  Spiraea alba Du Roi var. latifolia (Aiton) Dippel Native SPALL

  white meadowsweet · Rosaceae 2 counties
• 
  Spiraea japonica L. f. Introduced SPJA

  Japanese meadowsweet · Rosaceae 2 counties
• 
  Spiraea japonica L. f. var. fortunei (Planch.) Rehder Introduced SPJAF

  fortune meadowsweet · Rosaceae 2 counties