Arkansas

• Arkansas 05001
  816 taxa Open ↗
• Ashley 05003
  1,236 taxa Open ↗
• Baxter 05005
  1,025 taxa Open ↗
• Benton 05007
  1,372 taxa Open ↗
• Boone 05009
  697 taxa Open ↗
• Bradley 05011
  1,145 taxa Open ↗
• Calhoun 05013
  573 taxa Open ↗
• Carroll 05015
  1,039 taxa Open ↗
• Chicot 05017
  440 taxa Open ↗
• Clark 05019
  896 taxa Open ↗

Showing 3,051–3,100 of 3,277.

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  Trillium pusillum Michx. Native TRPU3

  dwarf wakerobin · Liliaceae 9 counties
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  Trillium pusillum Michx. var. ozarkanum (Palmer & Steyerm.) Steyerm. Native TRPUO

  Ozark wakerobin · Liliaceae 9 counties
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  Trillium recurvatum Beck Native TRRE5

  bloody butcher · Liliaceae 49 counties
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  Trillium sessile L. Native TRSE2

  toadshade · Liliaceae 23 counties
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  Trillium viridescens Nutt. Native TRVI5

  tapertip wakerobin · Liliaceae 26 counties
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  Triodanis biflora (Ruiz & Pav.) Greene Native TRBI2

  small Venus' looking-glass · Campanulaceae 38 counties
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  Triodanis holzingeri McVaugh Native TRHO2

  Holzinger's Venus' looking-glass · Campanulaceae 1 county
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  Triodanis lamprosperma McVaugh Native TRLA10

  prairie Venus' looking-glass · Campanulaceae 15 counties
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  Triodanis leptocarpa (Nutt.) Nieuwl. Native TRLE3

  slimpod Venus' looking-glass · Campanulaceae 4 counties
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  Triodanis perfoliata (L.) Nieuwl. Native TRPE4

  clasping Venus' looking-glass · Campanulaceae 61 counties
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  Triosteum angustifolium L. Native TRAN3

  yellowfruit horse-gentian · Caprifoliaceae 15 counties
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  Triosteum aurantiacum E.P. Bicknell Native TRAU4

  orangefruit horse-gentian · Caprifoliaceae 7 counties
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  Triosteum aurantiacum E.P. Bicknell var. aurantiacum Native TRAUA

  orangefruit horse-gentian · Caprifoliaceae 7 counties
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  Triosteum aurantiacum E.P. Bicknell var. illinoense (Wiegand) Palmer & Steyerm. Native TRAUI

  Illinois horse-gentian · Caprifoliaceae 2 counties
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  Triosteum perfoliatum L. Native TRPE5

  feverwort · Caprifoliaceae 14 counties
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  Triphora trianthophora (Sw.) Rydb. Native TRTR3

  threebirds · Orchidaceae 13 counties
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  Triplasis purpurea (Walter) Chapm. Native TRPU4

  purple sandgrass · Poaceae 4 counties
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  Tripsacum dactyloides (L.) L. Native TRDA3

  eastern gamagrass · Poaceae 37 counties
• 
  Tristagma uniflorum (Lindl.) Traub Introduced TRUN6

  springstar · Liliaceae 9 counties
• 
  Triticum aestivum L. Introduced TRAE

  common wheat · Poaceae 18 counties
• 
  Typha angustifolia L. Both TYAN

  narrowleaf cattail · Typhaceae 6 counties
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  Typha domingensis Pers. Native TYDO

  southern cattail · Typhaceae 7 counties
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  Typha latifolia L. Native TYLA

  broadleaf cattail · Typhaceae 37 counties
• ⚘
  Typha ×glauca Godr. (pro sp.) [angustifolia or domingensis × latifolia] Native TYGL

  hybrid cattail · Typhaceae 4 counties
• 
  Ulmus alata Michx. Native ULAL

  winged elm · Ulmaceae 73 counties
• 
  Ulmus americana L. Native ULAM

  American elm · Ulmaceae 75 counties
• 
  Ulmus crassifolia Nutt. Native ULCR

  cedar elm · Ulmaceae 41 counties
• 
  Ulmus pumila L. Introduced ULPU

  Siberian elm · Ulmaceae 8 counties
• 
  Ulmus rubra Muhl. Native ULRU

  slippery elm · Ulmaceae 74 counties
• 
  Ulmus serotina Sarg. Native ULSE

  September elm · Ulmaceae 28 counties
• 
  Ulmus thomasii Sarg. Native ULTH

  rock elm · Ulmaceae 5 counties
• 
  Urochloa arizonica (Scribn. & Merr.) O. Morrone & F. Zuloaga Native URAR

  Arizona signalgrass · Poaceae 1 county
• 
  Urochloa ciliatissima (Buckley) R. Webster Native URCI

  fringed signalgrass · Poaceae 1 county
• 
  Urochloa platyphylla (Munro ex C. Wright) R.D. Webster Native URPL2

  broadleaf signalgrass · Poaceae 14 counties
• 
  Urochloa ramosa (L.) Nguyen Introduced URRA

  Poaceae 2 counties
• 
  Urochloa texana (Buckley) R. Webster Native URTE2

  Texas signalgrass · Poaceae 3 counties
• 
  Urtica chamaedryoides Pursh Native URCH3

  heartleaf nettle · Urticaceae 33 counties
• 
  Urtica dioica L. Both URDI

  stinging nettle · Urticaceae 1 county
• 
  Urtica dioica L. ssp. gracilis (Aiton) Seland. Native URDIG

  California nettle · Urticaceae 1 county
• 
  Utricularia gibba L. Native UTGI

  humped bladderwort · Lentibulariaceae 16 counties
• 
  Utricularia inflata Walter Native UTIN

  swollen bladderwort · Lentibulariaceae 5 counties
• 
  Utricularia macrorhiza Leconte Native UTMA

  common bladderwort · Lentibulariaceae 2 counties
• 
  Utricularia radiata Small Native UTRA

  little floating bladderwort · Lentibulariaceae 4 counties
• 
  Utricularia subulata L. Native UTSU

  zigzag bladderwort · Lentibulariaceae 4 counties
• 
  Uvularia grandiflora Sm. Native UVGR

  largeflower bellwort · Liliaceae 31 counties
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  Uvularia perfoliata L. Native UVPE

  perfoliate bellwort · Liliaceae 4 counties
• 
  Uvularia sessilifolia L. Native UVSE

  sessileleaf bellwort · Liliaceae 27 counties
• 
  Vaccaria hispanica (Mill.) Rauschert Introduced VAHI2

  cow soapwort · Caryophyllaceae 1 county
• 
  Vaccinium arboreum Marshall Native VAAR

  farkleberry · Ericaceae 67 counties
• 
  Vaccinium corymbosum L. Native VACO

  highbush blueberry · Ericaceae 1 county