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 2,801–2,850 of 2,969 (native).

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  Triodanis perfoliata (L.) Nieuwl. Native TRPE4

  clasping Venus' looking-glass · Campanulaceae 91 counties
• 
  Triosteum angustifolium L. Native TRAN3

  yellowfruit horse-gentian · Caprifoliaceae 16 counties
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  Triosteum aurantiacum E.P. Bicknell Native TRAU4

  orangefruit horse-gentian · Caprifoliaceae 68 counties
• 
  Triosteum aurantiacum E.P. Bicknell var. illinoense (Wiegand) Palmer & Steyerm. Native TRAUI

  Illinois horse-gentian · Caprifoliaceae 52 counties
• 
  Triosteum perfoliatum L. Native TRPE5

  feverwort · Caprifoliaceae 77 counties
• 
  Triphora trianthophora (Sw.) Rydb. Native TRTR3

  threebirds · Orchidaceae 20 counties
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  Triplasis purpurea (Walter) Chapm. Native TRPU4

  purple sandgrass · Poaceae 26 counties
• 
  Tripsacum dactyloides (L.) L. Native TRDA3

  eastern gamagrass · Poaceae 31 counties
• 
  Typha latifolia L. Native TYLA

  broadleaf cattail · Typhaceae 102 counties
• ⚘
  Typha ×glauca Godr. (pro sp.) [angustifolia or domingensis × latifolia] Native TYGL

  hybrid cattail · Typhaceae 1 county
• 
  Ulmus alata Michx. Native ULAL

  winged elm · Ulmaceae 24 counties
• 
  Ulmus americana L. Native ULAM

  American elm · Ulmaceae 102 counties
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  Ulmus rubra Muhl. Native ULRU

  slippery elm · Ulmaceae 102 counties
• 
  Ulmus thomasii Sarg. Native ULTH

  rock elm · Ulmaceae 10 counties
• 
  Urochloa platyphylla (Munro ex C. Wright) R.D. Webster Native URPL2

  broadleaf signalgrass · Poaceae 1 county
• 
  Urtica chamaedryoides Pursh Native URCH3

  heartleaf nettle · Urticaceae 4 counties
• 
  Urtica dioica L. ssp. gracilis (Aiton) Seland. Native URDIG

  California nettle · Urticaceae 2 counties
• 
  Utricularia cornuta Michx. Native UTCO

  horned bladderwort · Lentibulariaceae 3 counties
• 
  Utricularia gibba L. Native UTGI

  humped bladderwort · Lentibulariaceae 17 counties
• 
  Utricularia intermedia Hayne Native UTIN2

  flatleaf bladderwort · Lentibulariaceae 6 counties
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  Utricularia macrorhiza Leconte Native UTMA

  common bladderwort · Lentibulariaceae 31 counties
• 
  Utricularia minor L. Native UTMI

  lesser bladderwort · Lentibulariaceae 4 counties
• 
  Utricularia purpurea Walter Native UTPU

  eastern purple bladderwort · Lentibulariaceae 1 county
• 
  Utricularia resupinata B.D. Greene ex Bigelow Native UTRE

  lavender bladderwort · Lentibulariaceae 1 county
• 
  Utricularia subulata L. Native UTSU

  zigzag bladderwort · Lentibulariaceae 1 county
• 
  Uvularia grandiflora Sm. Native UVGR

  largeflower bellwort · Liliaceae 93 counties
• 
  Uvularia sessilifolia L. Native UVSE

  sessileleaf bellwort · Liliaceae 16 counties
• 
  Vaccinium angustifolium Aiton Native VAAN

  lowbush blueberry · Ericaceae 9 counties
• 
  Vaccinium arboreum Marshall Native VAAR

  farkleberry · Ericaceae 15 counties
• 
  Vaccinium corymbosum L. Native VACO

  highbush blueberry · Ericaceae 7 counties
• 
  Vaccinium macrocarpon Aiton Native VAMA

  cranberry · Ericaceae 4 counties
• 
  Vaccinium myrtilloides Michx. Native VAMY

  velvetleaf huckleberry · Ericaceae 4 counties
• 
  Vaccinium oxycoccos L. Native VAOX

  small cranberry · Ericaceae 1 county
• 
  Vaccinium pallidum Aiton Native VAPA4

  Blue Ridge blueberry · Ericaceae 23 counties
• 
  Vaccinium stamineum L. Native VAST

  deerberry · Ericaceae 2 counties
• 
  Valeriana edulis Nutt. ex Torr. & A. Gray Native VAED

  tobacco root · Valerianaceae 12 counties
• 
  Valeriana edulis Nutt. ex Torr. & A. Gray var. ciliata (Torr. & A. Gray) Cronquist Native VAEDC

  tobacco root · Valerianaceae 12 counties
• 
  Valeriana pauciflora Michx. Native VAPA2

  largeflower valerian · Valerianaceae 18 counties
• 
  Valeriana uliginosa (Torr. & A. Gray) Rydb. Native VAUL2

  mountain valerian · Valerianaceae 1 county
• 
  Valerianella chenopodiifolia (Pursh) DC. Native VACH

  goosefoot cornsalad · Valerianaceae 2 counties
• 
  Valerianella radiata (L.) Dufr. Native VARA

  beaked cornsalad · Valerianaceae 39 counties
• 
  Valerianella umbilicata (Sull.) Alph. Wood Native VAUM

  navel cornsalad · Valerianaceae 3 counties
• 
  Vallisneria americana Michx. Native VAAM3

  American eelgrass · Hydrocharitaceae 18 counties
• 
  Veratrum virginicum (L.) W.T. Aiton Native VEVI5

  Virginia bunchflower · Liliaceae 15 counties
• 
  Veratrum woodii J.W. Robbins ex Alph. Wood Native VEWO3

  Wood's bunchflower · Liliaceae 12 counties
• 
  Verbena bracteata Cav. ex Lag. & Rodr. Native VEBR

  bigbract verbena · Verbenaceae 83 counties
• 
  Verbena hastata L. Native VEHA2

  swamp verbena · Verbenaceae 102 counties
• 
  Verbena hastata L. var. hastata Native VEHAH

  swamp verbena · Verbenaceae 102 counties
• 
  Verbena simplex Lehm. Native VESI

  narrowleaf vervain · Verbenaceae 51 counties
• 
  Verbena stricta Vent. Native VEST

  hoary verbena · Verbenaceae 100 counties