Index / States / Illinois / Williamson
§1County listing — Illinois
Williamson County
Illinois
- FIPS
- 17199
- Taxa recorded
- 1,210
- State
- Illinois
Filter
Showing 851–900 of 1,015 (native).
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Sida spinosa L. Native SISPprickly fanpetals · Malvaceae -
Silene antirrhina L. Native SIAN2sleepy silene · Caryophyllaceae -
Silene stellata (L.) W.T. Aiton Native SISTwidowsfrill · Caryophyllaceae -
Silphium integrifolium Michx. Native SIIN2wholeleaf rosinweed · Asteraceae -
Silphium laciniatum L. Native SILA3compassplant · Asteraceae - Silphium laciniatum L. var. laciniatum Native SILAL2compassplant · Asteraceae
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Silphium perfoliatum L. Native SIPE2cup plant · Asteraceae - Silphium perfoliatum L. var. perfoliatum Native SIPEPcup plant · Asteraceae
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Silphium terebinthinaceum Jacq. Native SITEprairie rosinweed · Asteraceae -
Sisyrinchium albidum Raf. Native SIAL3white blue-eyed grass · Iridaceae -
Sisyrinchium angustifolium Mill. Native SIAN3narrowleaf blue-eyed grass · Iridaceae -
Smallanthus uvedalius (L.) Mack. ex Small Native SMUVhairy leafcup · Asteraceae -
Smilax bona-nox L. Native SMBO2saw greenbrier · Smilacaceae - Smilax bona-nox L. var. bona-nox Native SMBOB2saw greenbrier · Smilacaceae
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Smilax glauca Walter Native SMGLcat greenbrier · Smilacaceae -
Smilax lasioneura Hook. Native SMLA3Blue Ridge carrionflower · Smilacaceae -
Smilax pulverulenta Michx. Native SMPU2downy carrionflower · Smilacaceae -
Smilax rotundifolia L. Native SMROroundleaf greenbrier · Smilacaceae -
Smilax tamnoides L. Native SMTA2bristly greenbrier · Smilacaceae -
Solanum carolinense L. Native SOCA3Carolina horsenettle · Solanaceae - Solanum carolinense L. var. carolinense Native SOCAC4Carolina horsenettle · Solanaceae
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Solanum ptycanthum Dunal Native SOPT7West Indian nightshade · Solanaceae -
Solidago buckleyi Torr. & A. Gray Native SOBUBuckley's goldenrod · Asteraceae -
Solidago caesia L. Native SOCA4wreath goldenrod · Asteraceae -
Solidago canadensis L. Native SOCA6Canada goldenrod · Asteraceae -
Solidago juncea Aiton Native SOJUearly goldenrod · Asteraceae -
Solidago missouriensis Nutt. Native SOMI2Missouri goldenrod · Asteraceae - Solidago missouriensis Nutt. var. fasciculata Holz. Native SOMIFMissouri goldenrod · Asteraceae
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Solidago nemoralis Aiton Native SONEgray goldenrod · Asteraceae -
Solidago patula Muhl. ex Willd. Native SOPA2roundleaf goldenrod · Asteraceae - Solidago patula Muhl. ex Willd. var. patula Native SOPAProundleaf goldenrod · Asteraceae
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Solidago rugosa Mill. Native SORU2wrinkleleaf goldenrod · Asteraceae -
Solidago ulmifolia Muhl. ex Willd. Native SOUL2elmleaf goldenrod · Asteraceae - Solidago ulmifolia Muhl. ex Willd. var. ulmifolia Native SOULU2elmleaf goldenrod · Asteraceae
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Sorghastrum nutans (L.) Nash Native SONU2Indiangrass · Poaceae -
Spartina pectinata Bosc ex Link Native SPPEprairie cordgrass · Poaceae -
Spermacoce glabra Michx. Native SPGL2smooth false buttonweed · Rubiaceae -
Spermolepis echinata (Nutt. ex DC.) A. Heller Native SPEC2bristly scaleseed · Apiaceae -
Sphenopholis intermedia (Rydb.) Rydb. Native SPIN3slender wedgescale · Poaceae -
Sphenopholis nitida (Biehler) Scribn. Native SPNIshiny wedgescale · Poaceae -
Sphenopholis obtusata (Michx.) Scribn. Native SPOBprairie wedgescale · Poaceae -
Spigelia marilandica (L.) L. Native SPMA3woodland pinkroot · Loganiaceae -
Spiranthes cernua (L.) Rich. Native SPCEnodding lady's tresses · Orchidaceae -
Spiranthes tuberosa Raf. Native SPTUlittle lady's tresses · Orchidaceae -
Spirodela polyrrhiza (L.) Schleid. Native SPPOcommon duckmeat · Lemnaceae -
Sporobolus compositus (Poir.) Merr. Native SPCO16composite dropseed · Poaceae - Sporobolus compositus (Poir.) Merr. var. compositus Native SPCOC2composite dropseed · Poaceae
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Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood Native SPVApoverty dropseed · Poaceae - Sporobolus vaginiflorus (Torr. ex A. Gray) Alph. Wood var. vaginiflorus Native SPVAV2poverty dropseed · Poaceae
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Staphylea trifolia L. Native STTRAmerican bladdernut · Staphyleaceae