South Dakota

• Aurora 46003
  194 taxa Open ↗
• Beadle 46005
  215 taxa Open ↗
• Bennett 46007
  214 taxa Open ↗
• Bon Homme 46009
  196 taxa Open ↗
• Brookings 46011
  505 taxa Open ↗
• Brown 46013
  210 taxa Open ↗
• Brule 46015
  271 taxa Open ↗
• Buffalo 46017
  166 taxa Open ↗
• Butte 46019
  280 taxa Open ↗
• Campbell 46021
  128 taxa Open ↗

Showing 1,901–1,950 of 2,032.

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  Thelesperma filifolium (Hook.) A. Gray Native THFI

  stiff greenthread · Asteraceae 4 counties
• 
  Thelesperma filifolium (Hook.) A. Gray var. intermedium (Rydb.) Shinners Native THFII

  stiff greenthread · Asteraceae 4 counties
• 
  Thelesperma megapotamicum (Spreng.) Kuntze Native THME

  Hopi tea greenthread · Asteraceae 1 county
• 
  Thelypodium integrifolium (Nutt.) Endl. ex Walp. Native THIN

  entireleaved thelypody · Brassicaceae 2 counties
• 
  Thelypodium integrifolium (Nutt.) Endl. ex Walp. ssp. integrifolium Native THINI

  entireleaved thelypody · Brassicaceae 2 counties
• 
  Thelypteris palustris Schott Native THPA

  eastern marsh fern · Thelypteridaceae 3 counties
• 
  Thelypteris palustris Schott var. pubescens (G. Lawson) Fernald Native THPAP

  eastern marsh fern · Thelypteridaceae 3 counties
• 
  Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richardson Native THRH

  prairie thermopsis · Fabaceae 11 counties
• 
  Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang Introduced THPO7

  tall wheatgrass · Poaceae 3 counties
• 
  Thlaspi arvense L. Introduced THAR5

  field pennycress · Brassicaceae 19 counties
• 
  Thymelaea passerina (L.) Coss. & Germ. Introduced THPA7

  mezereon · Thymelaeaceae 2 counties
• 
  Tilia americana L. Native TIAM

  American basswood · Tiliaceae 11 counties
• 
  Tilia americana L. var. americana Native TIAMA

  American basswood · Tiliaceae 11 counties
• 
  Townsendia exscapa (Richardson) Porter Native TOEX2

  stemless Townsend daisy · Asteraceae 4 counties
• 
  Townsendia grandiflora Nutt. Native TOGR

  largeflower Townsend daisy · Asteraceae 2 counties
• 
  Townsendia hookeri Beaman Native TOHO

  Hooker's Townsend daisy · Asteraceae 3 counties
• 
  Toxicodendron radicans (L.) Kuntze Native TORA2

  eastern poison ivy · Anacardiaceae 1 county
• 
  Toxicodendron radicans (L.) Kuntze ssp. negundo (Greene) Gillis Native TORAN

  eastern poison ivy · Anacardiaceae 1 county
• 
  Toxicodendron rydbergii (Small ex Rydb.) Greene Native TORY

  western poison ivy · Anacardiaceae 14 counties
• 
  Tradescantia bracteata Small Native TRBR

  longbract spiderwort · Commelinaceae 31 counties
• 
  Tradescantia occidentalis (Britton) Smyth Native TROC

  prairie spiderwort · Commelinaceae 11 counties
• 
  Tradescantia occidentalis (Britton) Smyth var. occidentalis Native TROCO

  prairie spiderwort · Commelinaceae 11 counties
• 
  Tragopogon dubius Scop. Introduced TRDU

  yellow salsify · Asteraceae 25 counties
• 
  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae 2 counties
• 
  Tribulus terrestris L. Introduced TRTE

  puncturevine · Zygophyllaceae 7 counties
• 
  Trichostema brachiatum L. Native TRBR5

  fluxweed · Lamiaceae 2 counties
• 
  Trifolium beckwithii W.H. Brewer ex S. Watson Native TRBE2

  Beckwith's clover · Fabaceae 1 county
• 
  Trifolium hybridum L. Introduced TRHY

  alsike clover · Fabaceae 4 counties
• 
  Trifolium incarnatum L. Introduced TRIN3

  crimson clover · Fabaceae 1 county
• 
  Trifolium pratense L. Introduced TRPR2

  red clover · Fabaceae 14 counties
• 
  Trifolium repens L. Introduced TRRE3

  white clover · Fabaceae 5 counties
• 
  Triglochin maritima L. Native TRMA20

  seaside arrowgrass · Juncaginaceae 7 counties
• 
  Triglochin palustris L. Native TRPA28

  marsh arrowgrass · Juncaginaceae 2 counties
• 
  Trillium cernuum L. Native TRCE

  whip-poor-will flower · Liliaceae 3 counties
• 
  Trillium flexipes Raf. Native TRFL6

  nodding wakerobin · Liliaceae 2 counties
• 
  Trillium nivale Riddell Native TRNI2

  snow trillium · Liliaceae 1 county
• 
  Triodanis leptocarpa (Nutt.) Nieuwl. Native TRLE3

  slimpod Venus' looking-glass · Campanulaceae 9 counties
• 
  Triodanis perfoliata (L.) Nieuwl. Native TRPE4

  clasping Venus' looking-glass · Campanulaceae 7 counties
• 
  Triplasis purpurea (Walter) Chapm. Native TRPU4

  purple sandgrass · Poaceae 3 counties
• 
  Tripterocalyx micranthus (Torr.) Hook. Native TRMI6

  smallflower sandverbena · Nyctaginaceae 1 county
• 
  Trisetum spicatum (L.) K. Richt. Native TRSP2

  spike trisetum · Poaceae 1 county
• 
  Typha angustifolia L. Both TYAN

  narrowleaf cattail · Typhaceae 23 counties
• 
  Typha latifolia L. Native TYLA

  broadleaf cattail · Typhaceae 23 counties
• 
  Ulmus americana L. Native ULAM

  American elm · Ulmaceae 19 counties
• 
  Ulmus pumila L. Introduced ULPU

  Siberian elm · Ulmaceae 6 counties
• 
  Ulmus rubra Muhl. Native ULRU

  slippery elm · Ulmaceae 9 counties
• 
  Urtica dioica L. Both URDI

  stinging nettle · Urticaceae 25 counties
• 
  Urtica dioica L. ssp. gracilis (Aiton) Seland. Native URDIG

  California nettle · Urticaceae 25 counties
• 
  Utricularia macrorhiza Leconte Native UTMA

  common bladderwort · Lentibulariaceae 18 counties
• 
  Uvularia grandiflora Sm. Native UVGR

  largeflower bellwort · Liliaceae 3 counties