St. Clair County

Showing 1,301–1,350 of 1,492.

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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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  Sorghastrum nutans (L.) Nash Native SONU2

  Indiangrass · Poaceae
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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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  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 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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  Sphenopholis intermedia (Rydb.) Rydb. Native SPIN3

  slender wedgescale · Poaceae
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  Spiraea alba Du Roi Native SPAL2

  white meadowsweet · Rosaceae
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  Spiraea tomentosa L. Native SPTO2

  steeplebush · Rosaceae
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  Spiranthes cernua (L.) Rich. Native SPCE

  nodding lady's tresses · Orchidaceae
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  Spiranthes lacera (Raf.) Raf. Native SPLA4

  northern slender lady's tresses · Orchidaceae
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  Spirodela polyrrhiza (L.) Schleid. Native SPPO

  common duckmeat · Lemnaceae
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  Sporobolus cryptandrus (Torr.) A. Gray Native SPCR

  sand dropseed · Poaceae
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  Sporobolus neglectus Nash Native SPNE2

  puffsheath dropseed · Poaceae
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  Stachys palustris L. Native STPA

  marsh hedgenettle · Lamiaceae
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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 graminea L. Introduced STGR

  grass-like starwort · Caryophyllaceae
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  Stellaria longifolia Muhl. ex Willd. Native STLO

  longleaf starwort · Caryophyllaceae
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  Stellaria longifolia Muhl. ex Willd. var. longifolia Native STLOL

  longleaf starwort · Caryophyllaceae
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  Stellaria media (L.) Vill. Introduced STME2

  common chickweed · Caryophyllaceae
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  Streptopus amplexifolius (L.) DC. Both STAM2

  claspleaf twistedstalk · Liliaceae
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  Streptopus amplexifolius (L.) DC. var. amplexifolius Native STAMA2

  claspleaf twistedstalk · Liliaceae
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  Streptopus lanceolatus (Aiton) Reveal Native STLA16

  twistedstalk · Liliaceae
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  Streptopus lanceolatus (Aiton) Reveal var. lanceolatus Native STLAL2

  twistedstalk · Liliaceae
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  Stuckenia filiformis (Pers.) Börner Native STFI6

  fineleaf pondweed · Potamogetonaceae
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  Stuckenia filiformis (Pers.) Börner ssp. alpina (Blytt) Haynes, D.H. Les & M. Kral Native STFIA2

  fineleaf pondweed · Potamogetonaceae
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  Stuckenia pectinata (L.) Börner Native STPE15

  sago pondweed · Potamogetonaceae
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  Stuckenia vaginata (Turcz.) Holub Native STVA8

  sheathed pondweed · Potamogetonaceae
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  Suaeda calceoliformis (Hook.) Moq. Native SUCA2

  Pursh seepweed · Chenopodiaceae
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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. albus Native SYALA

  common snowberry · Caprifoliaceae
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  Symphoricarpos occidentalis Hook. Native SYOC

  western snowberry · Caprifoliaceae
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  Symphyotrichum boreale (Torr. & A. Gray) Á. Löve & D. Löve Native SYBO2

  northern bog aster · Asteraceae
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  Symphyotrichum ciliatum (Ledeb.) G.L. Nesom Native SYCI2

  rayless alkali aster · Asteraceae
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  Symphyotrichum cordifolium (L.) G.L. Nesom Native SYCO4

  common blue wood aster · Asteraceae
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  Symphyotrichum dumosum (L.) G.L. Nesom Native SYDU2

  rice button aster · Asteraceae
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  Symphyotrichum dumosum (L.) G.L. Nesom var. strictior (Torr. & A. Gray) G.L. Nesom Native SYDUS

  rice button aster · Asteraceae
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  Symphyotrichum ericoides (L.) G.L. Nesom Native SYER

  white heath aster · Asteraceae
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  Symphyotrichum ericoides (L.) G.L. Nesom var. ericoides Native SYERE

  white heath aster · Asteraceae
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  Symphyotrichum laeve (L.) Á. Löve & D. Löve Native SYLA3

  smooth blue aster · Asteraceae
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  Symphyotrichum laeve (L.) Á. Löve & D. Löve var. laeve Native SYLAL3

  smooth blue 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