Trillium underwoodii Small. Subgenus: Sessilia. 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, WH3, Case & Case (1997), Freeman (1975), Patrick (1986), Patrick (2007)