Trillium grandiflorum (Michx.) Salisb. - Large White Trillium


 

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Trillium grandiflorum - (image 1 of 5)

 

Taxonomy

Family: Liliaceae

Habitat

Moist woods, swampy woodlands. Most frequent on calcareous soils.

Associates

 

 Distribution

Quebec and ME west to MN, south to PA, OH, and IN, and in mountain to northern GA and northeast AL.

Morphology

Herbaceous perennial to 40 cm. Leaves ovate or rhombic to subrotund, short-acuminate, narrowed below the middle to and acute base, rarely short-petioled. Flower solitary, held above the leaves on an erect or declined peduncle 5-8 cm long; sepals lanceolate, ascending-spreading, 3-5 cm; petals white becoming pinkish, ascending from the base, spreading above, obovate or elliptic, longer than the sepals, 4-8 cm, acute; fruit white, 6-winged.

Notes

Flowers early April to early June

Wetland indicator: Upland

The seeds are dispersed by ants. Flowers initially pure white but often turning pinkish with age.

References

Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.

The New York Botanical Garden. Bronx, NY

 

Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.

 


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 Michael Hough 2005