York County

Showing 1,301–1,350 of 1,545.

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  Sisyrinchium montanum Greene var. crebrum Fernald Native SIMOC

  strict blue-eyed grass · Iridaceae
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  Sisyrinchium mucronatum Michx. Native SIMU3

  needletip blue-eyed grass · Iridaceae
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  Sium suave Walter Native SISU2

  hemlock waterparsnip · Apiaceae
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  Smilax herbacea L. Native SMHE

  smooth carrionflower · Smilacaceae
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  Smilax rotundifolia L. Native SMRO

  roundleaf greenbrier · Smilacaceae
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  Solanum carolinense L. Native SOCA3

  Carolina horsenettle · Solanaceae
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  Solanum carolinense L. var. carolinense Native SOCAC4

  Carolina horsenettle · Solanaceae
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  Solanum dulcamara L. Introduced SODU

  climbing nightshade · Solanaceae
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  Solanum nigrum L. Introduced SONI

  black nightshade · Solanaceae
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  Solanum rostratum Dunal Native SORO

  buffalobur nightshade · Solanaceae
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  Solidago arguta Aiton Native SOAR

  Atlantic goldenrod · Asteraceae
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  Solidago arguta Aiton var. arguta Native SOARA

  Atlantic goldenrod · Asteraceae
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  Solidago bicolor L. Native SOBI

  white goldenrod · Asteraceae
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  Solidago caesia L. Native SOCA4

  wreath goldenrod · Asteraceae
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  Solidago canadensis L. Native SOCA6

  Canada goldenrod · Asteraceae
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  Solidago flexicaulis L. Native SOFL2

  zigzag goldenrod · Asteraceae
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  Solidago gigantea Aiton Native SOGI

  giant goldenrod · Asteraceae
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  Solidago juncea Aiton Native SOJU

  early goldenrod · Asteraceae
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  Solidago nemoralis Aiton Native SONE

  gray goldenrod · Asteraceae
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  Solidago nemoralis Aiton var. nemoralis Native SONEN

  gray goldenrod · Asteraceae
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  Solidago puberula Nutt. Native SOPU

  downy goldenrod · Asteraceae
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  Solidago puberula Nutt. var. puberula Native SOPUP2

  downy goldenrod · Asteraceae
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  Solidago rugosa Mill. Native SORU2

  wrinkleleaf goldenrod · Asteraceae
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  Solidago sempervirens L. Native SOSE

  seaside goldenrod · Asteraceae
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  Solidago sempervirens L. var. sempervirens Native SOSES

  seaside goldenrod · Asteraceae
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  Solidago squarrosa Nutt. Native SOSQ

  stout goldenrod · Asteraceae
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  Solidago uliginosa Nutt. Native SOUL

  bog goldenrod · Asteraceae
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  Solidago ulmifolia Muhl. ex Willd. Native SOUL2

  elmleaf goldenrod · Asteraceae
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  Solidago ulmifolia Muhl. ex Willd. var. ulmifolia Native SOULU2

  elmleaf goldenrod · Asteraceae
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  Sonchus arvensis L. Introduced SOAR2

  field sowthistle · Asteraceae
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  Sonchus asper (L.) Hill Introduced SOAS

  spiny sowthistle · Asteraceae
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  Sonchus oleraceus L. Introduced SOOL

  common sowthistle · Asteraceae
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  Sorbaria sorbifolia (L.) A. Braun Introduced SOSO2

  false spiraea · Rosaceae
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  Sorbus aucuparia L. Introduced SOAU

  European mountain ash · Rosaceae
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  Sparganium americanum Nutt. Native SPAM

  American bur-reed · Sparganiaceae
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  Sparganium androcladum (Engelm.) Morong Native SPAN

  branched bur-reed · Sparganiaceae
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  Sparganium eurycarpum Engelm. Native SPEU

  broadfruit bur-reed · Sparganiaceae
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  Sparganium natans L. Native SPNA

  small bur-reed · Sparganiaceae
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  Spartina alterniflora Loisel. Native SPAL

  smooth cordgrass · Poaceae
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  Spartina patens (Aiton) Muhl. Native SPPA

  saltmeadow cordgrass · Poaceae
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  Spartina pectinata Bosc ex Link Native SPPE

  prairie cordgrass · Poaceae
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  Spergula arvensis L. Introduced SPAR

  corn spurry · Caryophyllaceae
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  Spergularia canadensis (Pers.) G. Don Native SPCA3

  Canadian sandspurry · Caryophyllaceae
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  Spergularia canadensis (Pers.) G. Don var. canadensis Native SPCAC

  Canadian sandspurry · Caryophyllaceae
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  Spergularia rubra (L.) J. Presl & C. Presl Introduced SPRU

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

  salt sandspurry · Caryophyllaceae
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  Sphenopholis intermedia (Rydb.) Rydb. Native SPIN3

  slender wedgescale · Poaceae
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  Sphenopholis obtusata (Michx.) Scribn. Native SPOB

  prairie wedgescale · Poaceae
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  Spiraea alba Du Roi Native SPAL2

  white meadowsweet · Rosaceae
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  Spiraea alba Du Roi var. latifolia (Aiton) Dippel Native SPALL

  white meadowsweet · Rosaceae