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 51–100 of 3,775.

• 
  Aethusa cynapium L. Introduced AECY2

  fool's parsley · Apiaceae 2 counties
• 
  Agalinis aspera (Douglas ex Benth.) Britton Native AGAS2

  tall false foxglove · Scrophulariaceae 36 counties
• 
  Agalinis auriculata (Michx.) S.F. Blake Native AGAU3

  earleaf false foxglove · Scrophulariaceae 27 counties
• 
  Agalinis fasciculata (Elliott) Raf. Native AGFA2

  beach false foxglove · Scrophulariaceae 5 counties
• 
  Agalinis gattingeri (Small) Small Native AGGA

  roundstem false foxglove · Scrophulariaceae 33 counties
• ⚘
  Agalinis paupercula (A. Gray) Britton Native AGPA12

  smallflower false foxglove · Scrophulariaceae 17 counties
• ⚘
  Agalinis paupercula (A. Gray) Britton var. borealis Pennell Native AGPAB

  smallflower false foxglove · Scrophulariaceae 1 county
• ⚘
  Agalinis paupercula (A. Gray) Britton var. paupercula Native AGPAP3

  smallflower false foxglove · Scrophulariaceae 16 counties
• 
  Agalinis purpurea (L.) Pennell Native AGPU5

  purple false foxglove · Scrophulariaceae 51 counties
• 
  Agalinis skinneriana (Alph. Wood) Britton Native AGSK

  Skinner's false foxglove · Scrophulariaceae 29 counties
• 
  Agalinis tenuifolia (Vahl) Raf. Native AGTE3

  slenderleaf false foxglove · Scrophulariaceae 85 counties
• 
  Agalinis tenuifolia (Vahl) Raf. var. macrophylla (Benth.) S.F. Blake Native AGTEM

  slenderleaf false foxglove · Scrophulariaceae 2 counties
• 
  Agalinis tenuifolia (Vahl) Raf. var. parviflora (Nutt.) Pennell Native AGTEP2

  slenderleaf false foxglove · Scrophulariaceae 1 county
• 
  Agalinis tenuifolia (Vahl) Raf. var. tenuifolia Native AGTET

  slenderleaf false foxglove · Scrophulariaceae 85 counties
• 
  Agastache foeniculum (Pursh) Kuntze Native AGFO

  blue giant hyssop · Lamiaceae 1 county
• 
  Agastache nepetoides (L.) Kuntze Native AGNE2

  yellow giant hyssop · Lamiaceae 79 counties
• 
  Agastache scrophulariifolia (Willd.) Kuntze Native AGSC

  purple giant hyssop · Lamiaceae 45 counties
• 
  Ageratina altissima (L.) R.M. King & H. Rob. Native AGAL5

  white snakeroot · Asteraceae 101 counties
• 
  Ageratina altissima (L.) R.M. King & H. Rob. var. altissima Native AGALA

  white snakeroot · Asteraceae 101 counties
• 
  Agrimonia gryposepala Wallr. Native AGGR2

  tall hairy agrimony · Rosaceae 53 counties
• 
  Agrimonia microcarpa Wallr. Native AGMI2

  smallfruit agrimony · Rosaceae 1 county
• 
  Agrimonia parviflora Aiton Native AGPA6

  harvestlice · Rosaceae 69 counties
• 
  Agrimonia pubescens Wallr. Native AGPU

  soft agrimony · Rosaceae 83 counties
• 
  Agrimonia rostellata Wallr. Native AGRO3

  beaked agrimony · Rosaceae 59 counties
• 
  Agropyron cristatum (L.) Gaertn. Introduced AGCR

  crested wheatgrass · Poaceae 2 counties
• 
  Agropyron cristatum (L.) Gaertn. ssp. pectinatum (M. Bieb.) Tzvelev Introduced AGCRP8

  crested wheatgrass · Poaceae 2 counties
• 
  Agropyron desertorum (Fisch. ex Link) Schult. Introduced AGDE2

  desert wheatgrass · Poaceae 2 counties
• 
  Agrostemma githago L. Introduced AGGI

  common corncockle · Caryophyllaceae 44 counties
• 
  Agrostis capillaris L. Introduced AGCA5

  colonial bentgrass · Poaceae 5 counties
• 
  Agrostis elliottiana Schult. Native AGEL4

  Elliott's bentgrass · Poaceae 20 counties
• 
  Agrostis gigantea Roth Introduced AGGI2

  redtop · Poaceae 102 counties
• 
  Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. Native AGHY

  winter bentgrass · Poaceae 81 counties
• 
  Agrostis perennans (Walter) Tuck. Native AGPE

  upland bentgrass · Poaceae 64 counties
• 
  Agrostis scabra Willd. Native AGSC5

  rough bentgrass · Poaceae 23 counties
• 
  Agrostis stolonifera L. Introduced AGST2

  creeping bentgrass · Poaceae 24 counties
• 
  Ailanthus altissima (Mill.) Swingle Introduced AIAL

  tree of heaven · Simaroubaceae 67 counties
• 
  Aira caryophyllea L. Introduced AICA

  silver hairgrass · Poaceae 2 counties
• 
  Aira caryophyllea L. var. caryophyllea Introduced AICAC2

  silver hairgrass · Poaceae 2 counties
• 
  Ajuga genevensis L. Introduced AJGE

  blue bugle · Lamiaceae 5 counties
• 
  Ajuga reptans L. Introduced AJRE

  common bugle · Lamiaceae 5 counties
• 
  Albizia julibrissin Durazz. Introduced ALJU

  silktree · Fabaceae 33 counties
• 
  Alcea rosea L. Introduced ALRO3

  hollyhock · Malvaceae 30 counties
• 
  Aletris farinosa L. Native ALFA2

  white colicroot · Liliaceae 8 counties
• 
  Alisma subcordatum Raf. Native ALSU

  American water plantain · Alismataceae 97 counties
• 
  Alisma triviale Pursh Native ALTR7

  northern water plantain · Alismataceae 23 counties
• 
  Alliaria petiolata (M. Bieb.) Cavara & Grande Introduced ALPE4

  garlic mustard · Brassicaceae 26 counties
• 
  Allium ampeloprasum L. Introduced ALAM

  broadleaf wild leek · Liliaceae 1 county
• 
  Allium atroviolaceum Boiss. Introduced ALAT3

  broadleaf wild leek · Liliaceae 3 counties
• 
  Allium burdickii (Hanes) A.G. Jones Native ALBU2

  narrowleaf wild leek · Liliaceae 6 counties
• 
  Allium canadense L. Native ALCA3

  meadow garlic · Liliaceae 102 counties