Union County

Showing 551–600 of 641.

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  Sonchus arvensis L. ssp. uliginosus (M. Bieb.) Nyman Introduced SOARU

  moist sowthistle · Asteraceae
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  Sparganium eurycarpum Engelm. Native SPEU

  broadfruit bur-reed · Sparganiaceae
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  Spartina pectinata Bosc ex Link Native SPPE

  prairie cordgrass · Poaceae
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  Sporobolus neglectus Nash Native SPNE2

  puffsheath dropseed · Poaceae
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  Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood Native SPVA

  poverty dropseed · Poaceae
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  Stachys tenuifolia Willd. Native STTE

  smooth hedgenettle · Lamiaceae
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  Staphylea trifolia L. Native STTR

  American bladdernut · Staphyleaceae
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  Stellaria media (L.) Vill. Introduced STME2

  common chickweed · Caryophyllaceae
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  Stenanthium gramineum (Ker Gawl.) Morong Native STGR2

  eastern featherbells · Liliaceae
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  Stylophorum diphyllum (Michx.) Nutt. Native STDI3

  celandine poppy · Papaveraceae
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  Symphoricarpos orbiculatus Moench Native SYOR

  coralberry · Caprifoliaceae
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  Symphyotrichum cordifolium (L.) G.L. Nesom Native SYCO4

  common blue wood aster · Asteraceae
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  Symphyotrichum lanceolatum (Willd.) G.L. Nesom Native SYLA6

  white panicle aster · Asteraceae
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  Symphyotrichum lanceolatum (Willd.) G.L. Nesom ssp. lanceolatum Native SYLAL6

  white panicle aster · Asteraceae
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  Symphyotrichum lanceolatum (Willd.) G.L. Nesom ssp. lanceolatum var. lanceolatum Native SYLAL4

  white panicle aster · Asteraceae
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  Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve Native SYLA4

  calico aster · Asteraceae
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  Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve var. lateriflorum Native SYLAL7

  calico aster · Asteraceae
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  Symphyotrichum novae-angliae (L.) G.L. Nesom Native SYNO2

  New England aster · Asteraceae
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  Symphyotrichum pilosum (Willd.) G.L. Nesom Native SYPI2

  hairy white oldfield aster · Asteraceae
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  Symphyotrichum pilosum (Willd.) G.L. Nesom var. pilosum Native SYPIP3

  hairy white oldfield aster · Asteraceae
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  Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L. Nesom Native SYPR6

  crookedstem aster · Asteraceae
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  Symphyotrichum puniceum (L.) Á. Löve & D. Löve Native SYPU

  purplestem aster · Asteraceae
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  Symphyotrichum puniceum (L.) Á. Löve & D. Löve var. puniceum Native SYPUP

  purplestem aster · Asteraceae
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  Symplocarpus foetidus (L.) Salisb. ex W.P.C. Barton Native SYFO

  skunk cabbage · Araceae
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  Tanacetum vulgare L. Introduced TAVU

  common tansy · Asteraceae
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  Taraxacum officinale F.H. Wigg. Both TAOF

  common dandelion · Asteraceae
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  Taraxacum officinale F.H. Wigg. ssp. officinale Introduced TAOFO

  common dandelion · Asteraceae
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  Thalictrum thalictroides (L.) Eames & B. Boivin Native THTH2

  rue anemone · Ranunculaceae
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  Thaspium barbinode (Michx.) Nutt. Native THBA

  hairyjoint meadowparsnip · Apiaceae
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  Thaspium trifoliatum (L.) A. Gray Native THTR

  purple meadowparsnip · Apiaceae
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  Thaspium trifoliatum (L.) A. Gray var. aureum (L.) Britton Native THTRA

  purple meadowparsnip · Apiaceae
• 
  Thlaspi arvense L. Introduced THAR5

  field pennycress · Brassicaceae
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  Tilia americana L. Native TIAM

  American basswood · Tiliaceae
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  Tilia americana L. var. americana Native TIAMA

  American basswood · Tiliaceae
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  Torilis japonica (Houtt.) DC. Introduced TOJA

  erect hedgeparsley · Apiaceae
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  Toxicodendron radicans (L.) Kuntze Native TORA2

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

  eastern poison ivy · Anacardiaceae
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  Toxicodendron radicans (L.) Kuntze ssp. radicans Native TORAR

  eastern poison ivy · Anacardiaceae
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  Tradescantia subaspera Ker Gawl. Native TRSU2

  zigzag spiderwort · Commelinaceae
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  Tradescantia subaspera Ker Gawl. var. subaspera Native TRSUS

  zigzag spiderwort · Commelinaceae
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  Tradescantia virginiana L. Native TRVI

  Virginia spiderwort · Commelinaceae
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  Tragopogon dubius Scop. Introduced TRDU

  yellow salsify · Asteraceae
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  Tragopogon porrifolius L. Introduced TRPO

  salsify · Asteraceae
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  Trichostema brachiatum L. Native TRBR5

  fluxweed · Lamiaceae
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  Tridens flavus (L.) Hitchc. Native TRFL2

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

  purpletop tridens · Poaceae
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  Trifolium campestre Schreb. Introduced TRCA5

  field clover · Fabaceae
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  Trifolium repens L. Introduced TRRE3

  white clover · Fabaceae
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  Trillium grandiflorum (Michx.) Salisb. Native TRGR4

  white trillium · Liliaceae
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  Trillium sessile L. Native TRSE2

  toadshade · Liliaceae