Plant thumbnails T to Z

Common Name	Scientific Name	Bloom time*
*Bloom time: For flowering plants, the approximate time for first blooms; for other plants - when first fully formed or in leaf. Some plants bloom for long periods. " Spring" = April to May 31; "Early Summer" = June 1 to July 15; "Late Summer" = July 16 to August 31; "Autumn" = Sept. 1 to Oct. 31.
Links on the name are to a page of photos and plant information.
Botanical classification: Over the last several years Botanists have reclassified many plants from previous classifications. In some cases consolidating species and varieties and in some cases reclassifying to a different genus. We use the USDA Plants Database which in early 2010 completed a major update of these botanical classifications. Reference books in print will not reflect these recent updates until revised editions are published. While many plants may be known by a previous botanical name and, in many cases by a variety of common names, we have updated the listings on this website to the newest nomenclature.
Tall Bellflower see American Bellflower	Campanula americana L.	Late Summer
Tall Buttercup	Ranunculus acris L.	Early Summer
Tall Meadow-rue: See King of the Meadow.	Thalictrum pubescens Pursh (Older - Thalictrum polygamum)	Early Summer
Talus Slope Penstemon (Foxglove Beardtongue)	Penstemon digitalis Nutt. ex Sims	Early summer
Tamarack (Larch)	Larix laricina (Du Roi) K. Koch
Thimbleberry (Flowering Raspberry)	Rubus parviflorus Nutt.	Early Summer
Thimbleweed	Anemone Virginiana L.	Early Summer
Toadflax, Bastard	Comandra umbellata (L.) Nutt.	Spring
Toadshade (Sessile Trillium)	Trillium sessile L.	Spring
Toothwort (two-leaved) (Crinkleroot)	Cardamine diphylla (Michx.) Alph. Wood (Dentaria diphylla)	Spring
True Forget-me-not	Myosotis scorpioides L.	Early Summer to Autumn
Turk's-cap Lily	Lilium superbum L. and Lilium michiganense L.	Early Summer
Turtlehead (White Turtlehead)	Chelone glabra L.	Late Summer
Twinleaf	Jeffersonia diphylla (L.) Pers.	Spring
Veiny Pea	Lathyrus venosus Muhl. ex Willd.	Late Spring - Early Summer
Virgin's Bower	Clematis virginiana L.	Early Summer - Late summer
Virginia Bluebells	Mertensia virginica (L.) Pers. ex Link	Spring
Virginia Mountain Mint	Pycnanthemum virginianum L.	Early Summer - Late Summer
Virginia Waterleaf	Hydrophyllum virginianum L.	Spring
Water Arum (Wild Calla)	Calla palustris L	Spring
Water Horsetail	Equisetum fluviatile L.	Early Summer
Western Silver Aster	Symphyotrichum sericeum (Vent.) G.L. Nesom	Autumn
White Arrowleaf Aster	Symphyotrichum urophyllum (Lindl.) G.L. Nesom (Aster sagittifolius)	Autumn
White Avens	Geum canadense Jacq.	Early Summer
White Fawnlily (White Trout-lily)	Erythronium albidum Nutt.	Spring
White Prairie Clover	Dalea candida Michx. ex Willd	Early Summer
White Rattlesnake Root	Prenanthes alba L.	Autumn
White Snakeroot	Ageratina altissima L. [Eupatorium rugosum]	Late Summer
White Trillium (Large Flowered Trillium)	Trillium grandiflorum (Michx) Salisb.	Spring
White Trout-lily See: White fawnlily)	Erythronium albidum Nutt.	Spring
White Vervain	Verbana urticifoli
White Wild Indigo	Baptisia alba (L) Vent.	Early Summer
Wholeleaf Rosinweed	Silphium integrifolium Michx.	Late Summer
Whorled Loosestrife	Lysimachia quadrifolia L.	Early Summer
Wild Bean (Groundnut)	Apios americana Medik.	Late Summer
Wild Bergamont	Monarda fistulosa L.	Late Summer
Wild Black Currant	Ribes americanum Mill.	Spring
Wild Blue Indigo: See Blue Wild Indigo	Baptisia australis (L.) R. Br.	Early Summer
Wild Blue Phlox	Phlox divaricata L.	Spring
Wild False White Indigo: See White Wild Indigo above
Wild Calla See: Water Arum	Calla palustris L.	Spring
Wild Four O-Clock: See Heartleaf Four O'clock	Mirabilis nyctaginea (Michx.) MacMill.	Early Summer
Wild Geranium See: Spotted Geranium	Geranium maculatum L.	Spring
Wild Ginger See: Canadian Wildginger	Asarum canadense L.	Spring
Wild Oats See: Sissileleaf Bellwort	Uvularia sessilifolia L.	Spring
Wild Onion: See Autumn Onion	Allium stellatum Fraser ex Ker Gawl.	Late Summer
Wild Quinine	Parthenium integrifolium L.	Early to Late Summer
Wild Red Raspberry	Rubus idaeus L. and Rubus idaeus L. var. strigosus	Early Summer
Wild Roses	Rosa blanda Aiton & Rosa arkansana Porter	Early Summer
Wild Senna see American Senna	Senna hebecarpa (Fernald) Irwin & Barneby	Late Summer
Winterberry	Ilex verticillata (L.) A. Gray	Early Summer
Witch Hazel	Hamamelis virginiana L.	Autumn
Witch's Moneybags	Hylotelephium telephium L.	Late Summer
Wood Anemone	Anemone quinquefolia L.	Spring
Wood Nettle: See Canadian Woodnettle	Laportea canadensis L.	Early to Late Summer
Wood Poppy See: Celandine Poppy	Stylophorum diphyllum (Michx.) Nutt.	Spring
Wood Strawberry	Fragaria vesca L.	Spring
Woodland Sunflower: See Hairy Sunflower	Helianthus hirsutus Raf.	Late Summer
Yarrow	Achillea millefolium var. lanulosa	Early Summer
Yellow Daylily	Hemerocallis lilioasphodelus L.	Early Summer
Yellow Flag See: Paleyellow Iris	Iris pseudacorus L.	Early Summer
Yellow Hawkweed: See Canadian Hawkweed	Hieracium kalmii L. var. fasciculatum (Pursh) Lepage [Old - Hieracium canadense]	Late Summer
Yellow Lady's-slipper (greater)	Cypripedium parviflorum Salisb. var. pubescens (Willd.) Knight (older = Cypripedium calceolus var. pubescens)	Spring
Yellow Trillium See: Yellow wakerobin	Trillium luteum (Muhl.) Harbison	Spring
Yellow Trout-lily See: Dogtooth Violet	Erythronium americanum Ker Gawl.	Spring
Yellow Violet (Downy Yellow Violet)	Viola pubescens Aiton	Spring
Yellow Wakerobin	Trillium luteum (Muhl.) Harbison	Spring
Zig-zag Goldenrod	Solidago flexicaulis L.	Late Summer
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