Montgomery County

Showing 651–700 of 748.

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  Sonchus asper (L.) Hill Introduced SOAS

  spiny sowthistle · Asteraceae
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  Sorghastrum nutans (L.) Nash Native SONU2

  Indiangrass · Poaceae
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  Sparganium eurycarpum Engelm. Native SPEU

  broadfruit bur-reed · Sparganiaceae
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  Spergularia maritima (All.) Chiov. Introduced SPMA10

  media sandspurry · Caryophyllaceae
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  Spergularia salina J. Presl & C. Presl Native SPSA5

  salt sandspurry · Caryophyllaceae
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  Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood Native SPVA

  poverty dropseed · Poaceae
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  Stachys cordata Riddell Native STCO9

  heartleaf 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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  Symphoricarpos albus (L.) S.F. Blake Native SYAL

  common snowberry · Caprifoliaceae
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  Symphoricarpos albus (L.) S.F. Blake var. laevigatus (Fernald) S.F. Blake Native SYALL

  common snowberry · 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 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 shortii (Lindl.) G.L. Nesom Native SYSH

  Short's aster · Asteraceae
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  Symphyotrichum urophyllum (Lindl.) G.L. Nesom Native SYUR

  white arrowleaf aster · Asteraceae
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  Taenidia integerrima (L.) Drude Native TAIN

  yellow pimpernel · Apiaceae
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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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  Teucrium canadense L. Native TECA3

  Canada germander · Lamiaceae
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  Teucrium canadense L. var. canadense Native TECAC

  Canada germander · Lamiaceae
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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
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  Thelypteris palustris Schott Native THPA

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

  eastern marsh fern · Thelypteridaceae
• 
  Thymelaea passerina (L.) Coss. & Germ. Introduced THPA7

  mezereon · Thymelaeaceae
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  Torilis arvensis (Huds.) Link Introduced TOAR

  spreading hedgeparsley · Apiaceae
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  Torilis arvensis (Huds.) Link ssp. arvensis Introduced TOARA

  spreading 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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  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 porrifolius L. Introduced TRPO

  salsify · Asteraceae
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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 pratense L. Introduced TRPR2

  red 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
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  Triodanis perfoliata (L.) Nieuwl. Native TRPE4

  clasping Venus' looking-glass · Campanulaceae