Ulmus americana Linnaeus var. americana . American Elm, White Elm. Phen: Feb-Mar; Mar-Apr. Hab: Swamps, bottomland forests, moist slopes, especially on relatively or strongly nutrient-rich substrates. Dist: NS, NB, and QC west to se. SK, south to n. FL, c. TX, and Mexico.
Origin/Endemic status: Native
Syn: = Kurz & Godfrey (1962); = Ulmus americana – S; < Ulmus americana – Ar, C, F, FNA3, G, GrPl, GW2, Il, K1, K3, K4, Mi, Mo3, NcTx, NE, NY, Pa, RAB, Tn, Tx, Va, W, WH3, WV
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