Ecoregion: Highland Rim and Shawnee Hills

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Families: 150
Genera: 672
Species: 1639
Total Taxa: 1718

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Sparganium americanum Nutt. - American Burr-Reed
Sparganium eurycarpum Engelm. - Broad-Fruit Burr-Reed
Spartina pectinata Bosc ex Link - Freshwater Cord Grass
Spergula arvensis L. - Corn Spurry
Spermacoce glabra Michx. - Smooth False Buttonweed
Spiraea alba Du Roi - White Meadowsweet
Spiraea alba var. alba - White Meadowsweet
Spiraea japonica L. f. - Japanese Meadowsweet
Spiraea tomentosa L. - Steeplebush
Spiranthes cernua (L.) Rich. - White Nodding Ladies'-Tresses
Spiranthes lacera (Raf.) Raf. - Northern Slender Ladies'-Tresses
Spiranthes lacera var. gracilis (Bigelow) Luer - Northern Slender Lady's-Tresses
Spiranthes ochroleuca (Rydb.) Rydb. - Yellow Nodding Ladies'-Tresses
Spiranthes ovalis Lindl. - October Ladies'-Tresses
Spiranthes tuberosa Raf. - Little Ladies'-Tresses
Stachys cordata Riddell - Heart-Leaf Hedge-Nettle
Stachys hispida Pursh - Hedge-Nettle
Stachys tenuifolia Willd. - Smooth Hedge-Nettle
Staphylea trifolia L. - American Bladdernut
Stellaria corei Shinners - Tennessee Starwort
Stellaria graminea L. - Grass-Leaf Starwort
Stellaria media (L.) Vill. - Common Chickweed
Stellaria pubera Michx. - Great Chickweed
Stuckenia pectinata (L.) Börner - Sago False Pondweed
Styrax americanus Lam. - American Snowbell
Styrax grandifolius Aiton - Big-Leaf Snowbell
Symphyotrichum lanceolatum (Willd.) G. L. Nesom - White Panicled American-Aster
Symphyotrichum lanceolatum var. lanceolatum - White Panicled American-Aster
Symphyotrichum patens (Aiton) G. L. Nesom - Late Purple American-Aster
Symphyotrichum pilosum (Willd.) G. L. Nesom - White Oldfield American-Aster
Symphyotrichum pilosum var. pilosum - White Oldfield American-Aster
Symphyotrichum puniceum var. puniceum - Purple-Stem American-Aster
Tanacetum vulgare L. - Common Tansy
Taxodium distichum (L.) Rich. - Southern Bald-Cypress
Teucrium canadense L. - American Germander
Thalictrum dioicum L. - Early Meadow-Rue
Thalictrum pubescens Pursh - King-of-the-Meadow
Thalictrum revolutum DC. - Waxy-Leaf Meadow-Rue
Thaspium barbinode (Michx.) Nutt. - Hairy-Joint Meadow-Parsnip
Thelypteris palustris Schott - Eastern Marsh Fern
Thlaspi arvense L. - Field Pennycress
Tilia americana L. - American Basswood
Tilia × europaea L. - Hybrid Basswood
Torilis arvensis (Huds.) Link - Spreading Hedge-Parsley
Torilis japonica (Houtt.) DC. - Erect Hedge-Parsley
Tradescantia virginiana L. - Virginia Spiderwort
Tragia cordata Michx. - Heart-Leaf Noseburn
Tragopogon dubius Scop. - Meadow Goat's-Beard
Triadenum tubulosum (Walter) Gleason - Lesser Marsh St. Johnswort
Triadenum walteri (J. G. Gmel.) Gleason - Greater Marsh St. Johnswort
Trichostema brachiatum L. - False Pennyroyal
Trichostema dichotomum L. - Forked Bluecurls
Tridens strictus (Nutt.) Nash - Long-Spike Fluff Grass
Trifolium arvense L. - Rabbit-Foot Clover
Trifolium aureum Pollich - Greater Hop Clover
Trifolium campestre Schreb. - Lesser Hop Clover
Trifolium hybridum L. - Alsike Clover
Trifolium incarnatum L. - Crimson Clover
Trifolium reflexum L. - Buffalo Clover
Trifolium repens L. - White Clover
Trifolium stoloniferum Muhl. - Running Buffalo Clover
Trillium flexipes Raf. - Nodding Trillium
Trillium nivale Riddell - Snow Trillium
Triodanis perfoliata (L.) Nieuwl. - Clasping-Leaf Venus'-Looking-Glass
Triosteum angustifolium L. - Yellow-Fruit Horse-Gentian
Triosteum aurantiacum E. P. Bicknell - Orange-Fruit Horse-Gentian
Triosteum aurantiacum var. aurantiacum - Orange-Fruit Horse-Gentian
Triphora trianthophora subsp. trianthophora - Northern Slender Ladies'-Tresses
Tripsacum dactyloides (L.) L. - Eastern Mock Grama
Triticum aestivum L. - Bread Wheat
Typha angustifolia L. - Narrow-Leaf Cat-Tail
Typha latifolia L. - Broad-Leaf Cat-Tail
Typha × glauca Godr. - White Cat-Tail
Ulmus alata Michx. - Winged Elm
Ulmus americana L. - American Elm
Ulmus pumila L. - Siberian Elm
Ulmus rubra Muhl. - Slippery Elm
Urtica dioica L. - Stinging Nettle
Utricularia gibba L. - Humped Bladderwort
Utricularia macrorhiza Leconte - Greater Bladderwort
Uvularia grandiflora Sm. - Large-Flower Bellwort
Uvularia perfoliata L. - Perfoliate Bellwort
Uvularia sessilifolia L. - Sessile-Leaf Bellwort
Vaccinium arboreum Marshall - Tree Sparkle-Berry
Vaccinium pallidum Aiton - Early Lowbush Blueberry
Valeriana pauciflora Michx. - Large-Flower Valerian
Verbascum thapsus L. - Great Mullein
Verbena hastata L. - Blue Vervain
Verbena simplex Lehm. - Narrow-Leaf Vervain
Verbena stricta Vent. - Hoary Vervain
Verbena urticifolia L. - White Vervain
Verbesina virginica L. - White Crownbeard
Vernonia fasciculata Michx. - Prairie Ironweed
Veronica anagallis-aquatica L. - Blue Water Speedwell
Veronica arvensis L. - Corn Speedwell
Veronica hederifolia L. - Ivy-Leaf Speedwell
Veronica polita Fr. - Gray Field Speedwell
Veronica serpyllifolia L. - Thyme-Leaf Speedwell
Viburnum acerifolium L. - Maple-Leaf Arrow-Wood
Viburnum dentatum L. - Southern Arrow-Wood
Viburnum dilatatum Thunb. - Linden Arrow-Wood
Viburnum opulus L. - Highbush-Cranberry
Viburnum plicatum Thunb. - Japanese-Snowball
Viburnum prunifolium L. - Smooth Blackhaw
Viburnum rufidulum Raf. - Rusty Blackhaw
Vicia caroliniana Walter - Carolina Vetch
Vicia cracca L. - Purple-White Tufted Vetch
Vicia cracca subsp. cracca - Purple-White Tufted Vetch
Vicia sativa L. - Garden Vetch
Vicia villosa Roth - Winter Vetch
Vinca minor L. - Lesser Periwinkle
Viola bicolor Pursh - Field Pansy
Viola blanda Willd. - Sweet White Violet
Viola cucullata Aiton - Marsh Blue Violet
Viola missouriensis Greene - Missouri Violet
Viola palmata L. - Three-Lobe Violet
Viola palmata var. palmata - Three-Lobe Violet
Viola pedata L. - Bird-Foot Violet
Viola pedata var. pedata - Bird-Foot Violet
Viola pubescens Aiton - Downy Yellow Violet
Viola sororia Willd. - Hooded Blue Violet
Viola striata Aiton - Striped Cream Violet
Vitis riparia Michx. - River-Bank Grape
Vitis vulpina L. - Frost Grape
Vittaria appalachiana Farrar & Mickel - Appalachian Shoestring Fern
Vulpia bromoides (L.) Gray - Brome Six-Weeks Grass
Vulpia octoflora (Walter) Rydb. - Eight-Flower Six-Weeks Grass
Vulpia octoflora var. octoflora - Eight-Flower Six-Weeks Grass
Woodsia obtusa (Spreng.) Torr. - Blunt-Lobe Cliff Fern
Xanthium spinosum L. - Spiny Cockleburr
Xanthium strumarium L. - Rough Cockleburr
Yucca flaccida Haw. - Weak-Leaf Yucca
Zizia aptera (A. Gray) Fernald - Heart-Leaf Alexanders