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 601–650 of 766 (introduced).

• 
  Rubus bifrons Vest ex Tratt. Introduced RUBI

  Himalayan berry · Rosaceae 1 county
• 
  Rubus laciniatus Willd. Introduced RULA

  cutleaf blackberry · Rosaceae 8 counties
• 
  Rubus parvifolius L. Introduced RUPA2

  Japanese raspberry · Rosaceae 1 county
• 
  Rubus phoenicolasius Maxim. Introduced RUPH

  wine raspberry · Rosaceae 4 counties
• 
  Rumex acetosella L. Introduced RUAC3

  common sheep sorrel · Polygonaceae 102 counties
• 
  Rumex crispus L. Introduced RUCR

  curly dock · Polygonaceae 95 counties
• 
  Rumex crispus L. ssp. crispus Introduced RUCRC

  curly dock · Polygonaceae 95 counties
• 
  Rumex cristatus DC. Introduced RUCR2

  Greek dock · Polygonaceae 4 counties
• 
  Rumex dentatus L. Introduced RUDE3

  toothed dock · Polygonaceae 1 county
• 
  Rumex longifolius DC. Introduced RULO2

  dooryard dock · Polygonaceae 2 counties
• 
  Rumex obtusifolius L. Introduced RUOB

  bitter dock · Polygonaceae 60 counties
• 
  Rumex patientia L. Introduced RUPA5

  patience dock · Polygonaceae 21 counties
• 
  Ruta graveolens L. Introduced RUGR3

  common rue · Rutaceae 1 county
• 
  Saccharum ravennae (L.) L. Introduced SARA3

  ravennagrass · Poaceae 6 counties
• 
  Salix alba L. Introduced SAAL2

  white willow · Salicaceae 37 counties
• 
  Salix caprea L. Introduced SACA22

  goat willow · Salicaceae 3 counties
• ⚘
  Salix fragilis L. Introduced SAFR

  crack willow · Salicaceae 25 counties
• 
  Salix pentandra L. Introduced SAPE4

  laurel willow · Salicaceae 3 counties
• 
  Salix purpurea L. Introduced SAPU2

  purpleosier willow · Salicaceae 3 counties
• ⚘
  Salix ×pendulina Wender. [babylonica × euxina] Introduced SAPE12

  Wisconsin weeping willow · Salicaceae 7 counties
• 
  Salsola collina Pall. Introduced SACO8

  slender Russian thistle · Chenopodiaceae 1 county
• 
  Salsola tragus L. Introduced SATR12

  prickly Russian thistle · Chenopodiaceae 38 counties
• 
  Salvia pratensis L. Introduced SAPR2

  introduced sage · Lamiaceae 3 counties
• 
  Salvia verticillata L. Introduced SAVE5

  lilac sage · Lamiaceae 1 county
• ⚘
  Salvia ×sylvestris L. (pro sp.) [nemorosa × pratensis] Introduced SASY

  woodland sage · Lamiaceae 3 counties
• 
  Sanguisorba minor Scop. Introduced SAMI3

  small burnet · Rosaceae 2 counties
• 
  Sanguisorba minor Scop. ssp. balearica (Bourg. ex Nyman) M. Garm. & C. Navarro Introduced SAMIB2

  small burnet · Rosaceae 2 counties
• 
  Sanvitalia procumbens Lam. Introduced SAPR6

  Mexican creeping zinnia · Asteraceae 1 county
• 
  Saponaria officinalis L. Introduced SAOF4

  bouncingbet · Caryophyllaceae 95 counties
• 
  Satureja hortensis L. Introduced SAHO3

  summer savory · Lamiaceae 2 counties
• 
  Schedonorus arundinaceus (Schreb.) Dumort., nom. cons. Introduced SCAR7

  tall fescue · Poaceae 9 counties
• 
  Schedonorus pratensis (Huds.) P. Beauv. Introduced SCPR4

  meadow fescue · Poaceae 102 counties
• 
  Schoenoplectiella mucronata (L.) J. Jung & H.K. Choi Introduced SCMU15

  bog bulrush · Cyperaceae 1 county
• 
  Scilla siberica Andrews Introduced SCSI2

  Siberian squill · Liliaceae 3 counties
• 
  Scleranthus annuus L. Introduced SCAN2

  German knotgrass · Caryophyllaceae 3 counties
• 
  Sclerochloa dura (L.) P. Beauv. Introduced SCDU2

  common hardgrass · Poaceae 18 counties
• 
  Secale cereale L. Introduced SECE

  cereal rye · Poaceae 80 counties
• 
  Securigera varia (L.) Lassen Introduced SEVA4

  crownvetch · Fabaceae 37 counties
• 
  Sedum acre L. Introduced SEAC

  goldmoss stonecrop · Crassulaceae 7 counties
• 
  Sedum reflexum L. Introduced SERE4

  Jenny's stonecrop · Crassulaceae 1 county
• 
  Sedum sarmentosum Bunge Introduced SESA

  stringy stonecrop · Crassulaceae 11 counties
• 
  Senecio jacobaea L. Introduced SEJA

  stinking willie · Asteraceae 1 county
• 
  Senecio viscosus L. Introduced SEVI2

  sticky ragwort · Asteraceae 2 counties
• 
  Senecio vulgaris L. Introduced SEVU

  old-man-in-the-Spring · Asteraceae 12 counties
• 
  Senna occidentalis (L.) Link Introduced SEOC2

  septicweed · Fabaceae 1 county
• 
  Setaria faberi Herrm. Introduced SEFA

  Japanese bristlegrass · Poaceae 102 counties
• 
  Setaria italica (L.) P. Beauv. Introduced SEIT

  foxtail millet · Poaceae 37 counties
• 
  Setaria verticillata (L.) P. Beauv. Introduced SEVE3

  hooked bristlegrass · Poaceae 42 counties
• 
  Setaria viridis (L.) P. Beauv. Introduced SEVI4

  green bristlegrass · Poaceae 102 counties
• 
  Setaria viridis (L.) P. Beauv. var. major (Gaudin) Pospichal Introduced SEVIM

  green bristlegrass · Poaceae 3 counties