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Trillium underwoodii Small. Subgenus: Sessilia. Underwood's Trillium. Phen: (Late Jan-) Feb-mid Apr. Hab: Moist forests. Dist: N. FL north to c. GA and c. and s. AL.

ID notes: The only erect trillium with the stems typically < 2× as long as the leaves (though sometimes elongating later in the season).

Origin/Endemic status: Endemic

Synonymy: = FNA26, K1, K3, K4, S, S13, WH3, Case & Case (1997), Freeman (1975), Patrick (1986), Patrick (2007)

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Heliophily ?: 2

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image of plant© Alan Cressler: Trillium underwoodii, Lake Jackson Mounds Archaeological State Park, Leon County, Florida 2 by Alan Cressler source | Original Image ⭷

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