Trillium grandiflorum (Michaux) Salisbury. Subgenus: Callipetalon. Large-flowered Trillium, White Trillium, Great White Trillium. Phen: Apr-May; Jul-Aug. Hab: Rich coves and mesic slopes, also less typically on ridges over "rich" rock types. Dist: S. QC, s. ON, MI, and MN, south to NJ, c. NC, nw. SC, n. GA, n. AL, s. IL, and IA.
Origin/Endemic status: Native
Other Comments: Petals white to pink.
Synonymy: = C, F, FNA26, G, Il, K1, K3, K4, Mi, NE, NY, Pa, RAB, S, S13, Tat, Tn, Va, W, WV, Case & Case (1997), Patrick (1986), Patrick (2007)
Heliophily: 2
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