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Georeference Points from GBIF
Morphology
| Scapes | 11-40 cm, terete. |
| Leaves | petiolate. |
| Blades | 12-18 cm long x 8-20 cm wide. |
| Flower | pedicellate. |
| Sepals | 13-37 mm long x 4-10 mm wide. |
| Petals | 20-50 mm long x 10-20 mm wide, white with red at the base, the red often extending along the veind, or entirely white, margins undulate. |
| Anthers | 2-7 mm long, with extrorse dehiscence. |
| Ovary | 3-10 mm long, trigonal to terete. |
| Stigmas | 3-10 mm long, scarcely connate at the base, white. |
Anthesis
Flowering from late April to June.
Distribution
Canada: New Brunswick, Nova Scotia, Ontario, Prince Edward Island, and Quebec.
United States: Connecticut, Georgia, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, and West Virginia.
Reference(s)
Based on F.W. Case, Jr. Trillium in Flora of North America, volume 26. 2002. Oxford University Press.
A full treatment is available for Trillium at www.eFloras.org
Fact Sheet Developed By
Pedro Oñativia Lake © 2007
  Trillium undulatum | © Alan S. Heilman | University of Tennessee Herbarium | Austin Peay State University |
|  Trillium undulatum | Photo by W.S. Justice | Courtesy of Smithsonian Institution |  Trillium undulatum | Photo by G.A. Cooper | Courtesy of Smithsonian Institution |  Distribution Map | |