Flora of the Southeastern United States
2022 Edition

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LILIACEAE

Erythronium americanum Ker Gawler ssp. americanum . American Trout Lily. Phen: Feb-Apr (-May); Apr-May. Hab: Moist bottomland or slope forests, especially over mafic or calcareous rocks. Dist: NB west to ON and MN, south to sc. NC, c. TN, n. AR, and OK.

ID notes: Erythronium americanum is larger-flowered, more graceful, and later-blooming (by about 2 weeks) than E. umbilicatum ssp. umbilicatum, where they co-occur.

Origin/Endemic status: Native

Syn: = FNA26, GW1, K1, K3, K4, Mo1, NE, NY, Va, Mathew (1992), Parks & Hardin (1963); < Erythronium americanum – C, F, G, Il, Mi, Pa, RAB, S, Tn, W, WV

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image of plant© Alan Weakley source