Flora of the Southeastern United States
2022 Edition

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TRILLIACEAE

Trilliaceae Chevallier. Trillium Family.

Key to Trilliaceae

A family of ca. 6 genera and about 80 species, perennial herbs, of temperate Northern Hemisphere. The Trilliaceae is clearly monophyletic and strongly characterized morphologically, scarcely resembling its sibling groups (sister to Xerophyllaceae, divergence time ca. 60 million years ago); its recognition as a family seems well-warranted.

Ref: Farmer & Schilling (2002); Floden & Schilling (2018b) In Weakley et al. (2018b); Kim, Kim, & Kim (2019). Show full citations.

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Hover over a shape, letter, icon, or arrow on the map to see what it means. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Keith Bradley
image of plant© Will Stuart
image of plant© Will Stuart
image of plant© Edwin Bridges
image of plant© Ward, Scott
image of plant© Richard & Teresa Ware
image of plant© Alan M. Cressler
image of plant© Bruce A. Sorrie
image of plant© Richard & Teresa Ware