Ohio

• Adams 39001
  1,331 taxa Open ↗
• Allen 39003
  1,038 taxa Open ↗
• Ashland 39005
  998 taxa Open ↗
• Ashtabula 39007
  1,437 taxa Open ↗
• Athens 39009
  1,149 taxa Open ↗
• Auglaize 39011
  958 taxa Open ↗
• Belmont 39013
  945 taxa Open ↗
• Brown 39015
  629 taxa Open ↗
• Butler 39017
  850 taxa Open ↗
• Carroll 39019
  933 taxa Open ↗

Showing 3,151–3,200 of 3,424.

• 
  Tradescantia virginiana L. Native TRVI

  Virginia spiderwort · Commelinaceae 26 counties
• 
  Tragopogon dubius Scop. Introduced TRDU

  yellow salsify · Asteraceae 36 counties
• 
  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae 43 counties
• 
  Tragopogon pratensis L. Introduced TRPR

  Jack-go-to-bed-at-noon · Asteraceae 35 counties
• 
  Triadenum fraseri (Spach) Gleason Native TRFR

  Fraser's marsh St. Johnswort · Clusiaceae 25 counties
• 
  Triadenum tubulosum (Walter) Gleason Native TRTU

  lesser marsh St. Johnswort · Clusiaceae 5 counties
• 
  Triadenum virginicum (L.) Raf. Native TRVI2

  Virginia marsh St. Johnswort · Clusiaceae 17 counties
• 
  Triadenum walteri (J.G. Gmel.) Gleason Native TRWA

  greater marsh St. Johnswort · Clusiaceae 3 counties
• 
  Triantha glutinosa (Michx.) Baker Native TRGL5

  sticky tofieldia · Liliaceae 7 counties
• 
  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae 6 counties
• 
  Trichomanes boschianum Sturm Native TRBO

  Appalachian bristle fern · Hymenophyllaceae 2 counties
• 
  Trichomanes intricatum Farrar Native TRIN13

  weft fern · Hymenophyllaceae 5 counties
• 
  Trichophorum planifolium (Spreng.) Palla Native TRPL6

  bashful bulrush · Cyperaceae 10 counties
• 
  Trichostema brachiatum L. Native TRBR5

  fluxweed · Lamiaceae 37 counties
• 
  Trichostema dichotomum L. Native TRDI2

  forked bluecurls · Lamiaceae 20 counties
• 
  Trichostema setaceum Houtt. Native TRSE5

  narrowleaf bluecurls · Lamiaceae 9 counties
• 
  Tridens flavus (L.) Hitchc. Native TRFL2

  purpletop tridens · Poaceae 78 counties
• 
  Tridens flavus (L.) Hitchc. var. flavus Native TRFLF

  purpletop tridens · Poaceae 78 counties
• 
  Trientalis borealis Raf. Native TRBO2

  starflower · Primulaceae 14 counties
• 
  Trientalis borealis Raf. ssp. borealis Native TRBOB

  starflower · Primulaceae 14 counties
• 
  Trifolium ambiguum M. Bieb. Introduced TRAM15

  Kura clover · Fabaceae 1 county
• 
  Trifolium arvense L. Introduced TRAR4

  rabbitfoot clover · Fabaceae 16 counties
• 
  Trifolium aureum Pollich Introduced TRAU2

  golden clover · Fabaceae 45 counties
• 
  Trifolium campestre Schreb. Introduced TRCA5

  field clover · Fabaceae 47 counties
• 
  Trifolium dubium Sibth. Introduced TRDU2

  suckling clover · Fabaceae 18 counties
• 
  Trifolium hybridum L. Introduced TRHY

  alsike clover · Fabaceae 52 counties
• 
  Trifolium incarnatum L. Introduced TRIN3

  crimson clover · Fabaceae 14 counties
• 
  Trifolium pratense L. Introduced TRPR2

  red clover · Fabaceae 75 counties
• 
  Trifolium reflexum L. Native TRRE2

  buffalo clover · Fabaceae 6 counties
• 
  Trifolium repens L. Introduced TRRE3

  white clover · Fabaceae 77 counties
• 
  Trifolium resupinatum L. Introduced TRRE4

  reversed clover · Fabaceae 1 county
• 
  Trifolium stoloniferum Muhl. ex Eaton Native TRST4

  running buffalo clover · Fabaceae 13 counties
• 
  Triglochin maritima L. Native TRMA20

  seaside arrowgrass · Juncaginaceae 6 counties
• 
  Triglochin palustris L. Native TRPA28

  marsh arrowgrass · Juncaginaceae 6 counties
• 
  Trillium cernuum L. Native TRCE

  whip-poor-will flower · Liliaceae 1 county
• 
  Trillium erectum L. Native TRER3

  red trillium · Liliaceae 25 counties
• 
  Trillium flexipes Raf. Native TRFL6

  nodding wakerobin · Liliaceae 63 counties
• 
  Trillium grandiflorum (Michx.) Salisb. Native TRGR4

  white trillium · Liliaceae 75 counties
• 
  Trillium nivale Riddell Native TRNI2

  snow trillium · Liliaceae 12 counties
• 
  Trillium recurvatum Beck Native TRRE5

  bloody butcher · Liliaceae 4 counties
• 
  Trillium sessile L. Native TRSE2

  toadshade · Liliaceae 72 counties
• 
  Trillium undulatum Willd. Native TRUN

  painted trillium · Liliaceae 1 county
• 
  Triodanis perfoliata (L.) Nieuwl. Native TRPE4

  clasping Venus' looking-glass · Campanulaceae 67 counties
• 
  Triosteum angustifolium L. Native TRAN3

  yellowfruit horse-gentian · Caprifoliaceae 17 counties
• 
  Triosteum aurantiacum E.P. Bicknell Native TRAU4

  orangefruit horse-gentian · Caprifoliaceae 53 counties
• 
  Triosteum aurantiacum E.P. Bicknell var. aurantiacum Native TRAUA

  orangefruit horse-gentian · Caprifoliaceae 1 county
• 
  Triosteum aurantiacum E.P. Bicknell var. illinoense (Wiegand) Palmer & Steyerm. Native TRAUI

  Illinois horse-gentian · Caprifoliaceae 1 county
• 
  Triosteum perfoliatum L. Native TRPE5

  feverwort · Caprifoliaceae 47 counties
• 
  Triphora trianthophora (Sw.) Rydb. Native TRTR3

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

  purple sandgrass · Poaceae 7 counties