Ulmus rubra Muhlenberg. Subgenus: Ulmus. Section: Ulmus. Slippery Elm, Red Elm. 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, Tat, Tn, Tx, Va, W, WH3, WV, Kurz & Godfrey (1962); = Ulmus fulva Michx. – S, S13

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FAC
• Eastern Mountains and Piedmont: FAC
• Great Plains: FACU
• Midwest: FAC
• Northcentral & Northeast: FAC

Heliophily: 5