Ulmus rubra Muhlenberg. Subgenus: Ulmus. Section: Ulmus. Phen: Feb-Apr; Mar-May. Hab: Moist to fairly dry calcareous forests, rich bottomlands, rich cove forests in the low Mountains. Dist: ME, QC, and ON west to MN and ND, south to Panhandle FL and c. TX.
Origin/Endemic status: Native
Other Comments: U. rubra is susceptible to Dutch Elm Disease (see U. americana).
Synonymy: = Ar, C, F, FNA3, G, GrPl, Il, K1, K3, K4, Mi, NcTx, NE, NY, Pa, RAB, Tn, Tx, Va, W, WH3, WV, Kurz & Godfrey (1962); = Ulmus fulva Michx. – S