COMMON NAMES: T - Z.

 Use the alphabetical bar scattered throughout these indexes to go to the page containing the genus (first name of its scientific name).

[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]

tall coreopsis - Coreopsis tripteris L.

tall goldenrod - Solidago altissima L. var. altissima, Solidago gigantea Aiton

tall green milkweed - Asclepias hirtella (Pennell) Woodson

tall ironweed - Vernonia gigantea (Walt.) Trel. ex Branner ssp. gigantea

tall nut grass – Scleria triglomerata Michx.  

tall redtop - Tridens flavus (L.) Hitchc. var. flavus

tall thistle - Cirsium altissimum (L.) Sprengel  

tall thoroughwort - Eupatorium altisimum L.

tall tickseed - Coreopsis tripteris L.

tall white aster - Aster lanceolatus Willd. var. lanceolatus = Symphyotrichum lanceolatum (Willd.) G. L.  Nesom

tansy - Tanacetum parthemium Schultz-Bip

tartarian aster - Aster tartaricus L.

tassel-white - Itea virginica L.

teasel - Dipsacus fullonum L.  

teasel nut sedge Cyperus refractus Engelm. Ex Steudel

thalia - Thalia dealbata Roscoe

thelesperma - Thelesperma filifolium (Hook.) A. Gray  

thimble weed - Anemone virginica L.

thorn apple - Datura stramonium L.  

three-leaved stonecrop - Sedum ternatum Michaux

three-seeded mercury - Acalypha rhomboidea Raf.

three-way sedge – Dulichium arundinaceum (L.) Britton

thyme-leaved sandwort - Arenaria serpyllifolia L.  

tick clover - Desmodium paniculatum (L.) DC.

tickseed (ornamental) - Coreopsis verticillata

tickseed coreopsis - Coreopsis lanceolata L.

  [A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]

tickseed sunflower - Bidens aristosa (Michaux) Britton, Bidens polylepis Blake

tick treefoil - Desmodium cuspidatum (Nuhl.) Loud. var. cuspidatum

tinker's weed - Triosteum perfoliatum L.

tiger lily - Lilium lancifolium Thunb.

timothy - Phleum pratense L.

toadshade - Trillium sessile L.

toothache tree - Zanthoxylum americanum Miller  

toothcup - Ammania coccinea Rothb.

toothed spurge - Euphorbia dentata Michaux

toothwort - Cardamine concatenata (Michaux) O. Schwarz  

treacle mustard - Erysimum repandum L.

Trelease's larkspur - Delphinium treleasei Busch ex Davis

trumpet creeper - Campsis radicans (L.) Seemann

trumpet honeysuckle - Lonicera sempervirens L.

trumpet vine - Campsis radicans (L.) Seemann

tulip poplar - Liriodendron tulipifera L.

Turk's cap lily - Lilium michiganense Farw.  

turkey tangle - Phyla nodoflora (L.) E. Greene

twayblade - Liparis lilifolia (L.) Rich. ex Lindley

twin berry - Mitchella repens L.  

umbrella grass – Fuirena simplex Vahl, Fuirena cristatula (Torr.) Kral

umbrella magnolia - Magnolia tripetala (L.) L.

umbrella sedge -  Cyperus acuminatus Torr. & Hook, , Cyperus flavescens var. poiformis Pursh) Fern., Cyperus iria L., Cyperus lancastriensis Porter, Cyperus lupulinus  Mack. ssp. lupulinus, Cyperus odoratus L., Cyperus refractus Engelm. ex Steudel,  Cyperus squarrosus L., Cyperus strigosus L.

umbrella tree - Magnolia tripetala (L.) L.

variegated milkweed - Asclepias variegata L.  

[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]

varnish tree - Koelreutera paniculata  

velvet-leaf – Abutilon theophrasti Medikus

Venus' looking glass - Triodanis perfoliata (L.) Nieuwl..  

vervain - Verbena bonariensis L.

violet collinsia - Collinsia violacea Nutt.

violet wood sorel - Oxalis violacea L.

Virginia cowslip - Mertensia virginica (L.) Pers. ex Link

Virginia creeper - Parthenocissus quinquefolia (L.) Planchon  

Virginia goldenrod - Polygonum virginianum L.

Virginia lionsheart - Physostegia virginiana (L.) Bentham

Virginia snakeroot - Aristolochia serpentaria L.

Virginia spring beauty - Claytonia virginica L.   

Virginia wild rye -Elymus virginicus L. var. glabriflorus (Vasey) Bush

Virginia willow - Itea virginica L.

virgin's bower - Clematis terniflora DC.

wahoo - Euonymus atropurpureus Jacq.

wake robin - Trillium sessile  L.

wapato - Sagittaria latifolia Willd.

water hyacinth - Eichhornia crassipes (C. Martius) Solms-Laub  

water oak - Quercus nigra L.

water oak - Quercus schumardii Buckley var. schumardii 

water smartweed - Polygonum coccineum Muhl.

water willow - Justicia americana (L.) M. Vahl

waterleaf - Hydrophyllum virginianum L.

wayside speedwell - Veronica polita Fries

wedgeleaf draba - Draba cuneifolia Nutt. ex Torrey & A. Gray

western daisy - Astranthium integrifolium (Michaux) Nutt.

western salsify - Tragopogon dubius Scop.  

[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]

whipgrass - Scleria triglomerata Michx.

white ash - Fraxinus americana L.

white avens - Geum canadense Jacq.

white baneberry - Actaea pachypoda Elliott  

white birch - Betula pendula Roth.

white bleeding heart - Dicentra spectabilis f. alba

white crownbeard - Verbesina virginica L.

white daisy - Leucanthemum vulgare Lam.

white dogtooth violet - Erythronium albidum Nutt.

white evening primrose - Oenothera speciosa Nutt.

white gentian - Gentiana flavida A. Gray

white heath aster - Aster pilosus Willd. = Symohyotrichum pilosum (Willd.) G. L. Nelson

white mulberry - Morus alba L. f. alba  

white popular - Populus alba L. var .alba

white prairie clover - Dalea candida Michx. ex Willd.

white oak - Quercus alba L.

white prickly poppy - Argemone albiflora ssp texana G. Ownbey

white sassafras - Sassafras albidum (Nutt.) Nees

white snakeroot - Eupatorium rugosum Houtt.

white sweet clover - Melilotus albus Medikus

white top fleabane - Erigeron annuus (L.) Pers.

white top fleabane - Erigeron strigosus f. discoideus (Robb. ex A. Gray) Fern.

white trillium - Trillium flexipes Raf.

white trout lily - Erythronium albidum Nutt.

white upland aster - Solidago ptarmicoides (Nees) J. Boivin  

white vervain - Verbena urticifolia L.

[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]

white wake robin - Trillium flexipes Raf.

white water lily - Nymphaea odorata Sol.

white wild indigo - Baptisia alba var. macrophylla (Larisey) Isely

white woodland aster - Symphyotrichum laterifolium (L.) Ά. Lőve D. D. Lőve

white-eyed grass - Sisyrinchium campestre E. Bickn.

whitlow grass - Draba cuneifolia Nutt. ex Torrey & A. Gray

whorled milkweed - Asclepias quadrifolia Jacq., Asclepias verticillata L. 

whorled nut grass – Scleria verticillata Muhl.

widow's cross - Sedum pulchellum Michaux

wild ageratum - Eupatorium coelestinum L.  

wild bean - Strophostyles hevola (L.) Ell. var. hevola

wild bergamont - Monarda fistulosa L.

wild black cherry - Prunus serotina Ehrh.

wild carrot - Daucus carota L. ssp. carota f. carota

wild cherry - Prunus serotina Ehrh.

wild coffee - Triosteum perfoliatum L.

wild garlic - Allium canadense L., V. canadense var. laevendure (Bates) Owenby

wild geranium - Geranium maculatum L.

wild ginger - Asarum canadense L.

wild gooseberry - Ribes missouriense Nutt. ex Torrey & A. Gray

wild honeysuckle - Aquilegia canadensis L.

wild honeysuckle - Rhododendron prinophyllum (Small) Millais  

[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]

wild hyacinth - Camassia scilloides (Raf.) Cory

wild hydrangea - Hydrangea arborescens  

wild morning glory - Calystegia sepium (L.) R. Br.

wild oats - Chasmanthium latifolium (Michaux) H. Yates

wild onion - Allium canadense L., Allium stellatum Ker Gawl.

wild pansy - Viola rafinesquii E. Greene

wild petunia - Ruellia species

wild plum - Prunus sp.

wild potato vine - Ipomea pandurata (L.) G. Meyer

wild raisin - Viburnum rufidulum Raf.

wild snowbell - Ceanothus americanus L.

wild sorrel - Rumex hastalatus Baldwin ex Elliot

wild strawberry - Fragaria virginiana Duchesne  

wild senna - Cassia marilandica L.

wild sweet William - Phlox divaricata var. laphamii Alph. Wood

wild teasel - Dipsacus fullonum L.

wild quine - Parthemnium integrifolium L.

wild water pepper - Polygonum hydroperoides Michx.

willow leaved aster - Symphyotrichum praeltum (Poir.) G. L. Nesom

willow-leaved sunflower - Helainthus salicifolius A. Dietr.

willow oak - Quercus phellos L.

winged elm - Ulmus alata Michaux  

winges euonymous - Euonymous alatus (Thunb.) Siebold

[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]

winged loosestrife - Lythrum alatum Pursh

winged spindle-tree - Euonymous alatus (Thunb.) Siebold

winged sumac - Rhus copallina L.

winged wahoo - Euonymous alatus (Thunb.) Siebold

wisteria - Wisteria frutescens (L.) Poiret  

winter vetch - Vicia villosa Roth ssp. varia (Host) Corbière

wood angelica - Angelica venicosa (Greenwat) Fern.

wood betony - Pedicularis canadensis L.  

wolftail – Carex cherokeensis Schwein

woolly vetch - Vicia villosa Roth ssp. varia (Host) Corbière

wood nettle - Laportiera canadensis (L.) Gaud.

wood poppy - Stylophorum diphyllum (Michaux) Nutt.  

wood sage - Teucrium canadense L. var. canadense

woodbine - Parthenocissus quinquefolia (L.) Planchon  

wool grass – Scirpus cyperinus  (L.) Kunth.

woolen breeches - Hydrophyllum appendiculatum Michaux

woolly croton - Croton capitatus Michaux.

wooly pipe vine - Aristolochia tomentosa Sims

wormgrass - Spigelia marilandica L.

wreath aster - Aster ericoides L. var. ericoides f. caeruleus (Benke) S. F. Blake

yarrow - Achillea millefolium L.

yellow adder's tongue - Erythronium americanum Ker Gawler

yellow bark oak -Quercus vekutina Lam.

yellow crownbeard - Verbesina helianthoides Michaux  

yellow dock - Rumes crispus L.

yellow dog fennel - Helenium amarum (Raf.) H. Rock

yellow dogtooth violet - Erythronium americanum Ker Gawler

yellow flowered leaf cup - Polymnia uvedalia L.  

yellow foxtail - Setaria glauca (L.) P. Beauv.

[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]

yellow fringed orchid - Platanthera ciliaris (L.) Lindley

yellow fume wort - Corydalis flavula (Raf.) DC.

yellow harlequin - Corydalis flavula (Raf.) DC.

yellow honeysuckle - Lonicera flava Sims  

yellow ironweed - Verbesina alternifolia (L.) Britton

yellow melilot - Melilotus officinale (L.) Pallas

yellow nut grass – Cyperus esculentus L.

yellow melilot - Melilotus officinalis (L.) Pallas

yellow pimpernel - Taenidia integerrima (L.) Drude

yellow pond lily - Nuphar lutea (L.) Sibth. & Smith

yellow poplar - Liriodendron tulipifera L.

yellow rocket - Barbarea vulgaris R. Brown

yellow star grass - Hypoxis hirsuta (L.) Cov.

yellow sweet clover - Melilotus officinalis (L.) Pallas

yellow violet - Viola pubescens var. eriocarpa (Schwein.) N. Russell

yellow water cress -  Rorippa palustris (L.) Besser var. fernaldiana (Butters & Abbe) Sruckey

yellow water lily - Nuphar lutea (L.) Sibth. & Smith

yellow wood sorel - Oxalis species

yellowish gentian - Gentiana flavida A. Gray

yellowwood - Cladrastis kentukea (Dum.-Cours.) Rudd  

yerba de tajo - Eclipta prostrata (L.) L.

[A B C D E F G H I J K L M N O P Q R S T U V W X Y Z]