Ulmus crassifolia Nuttall. Subgenus: Oreoptelea. Section: Chaetoptelea. Cedar Elm, Olmo. Phen: Jul-Oct. Hab: Bottomland forests, hardwood flatwoods, prairies with tight soils; rarely river bluffs and ravines. Dist: W. TN, s. MO, and OK south to MS, LA, TX, and Mexico (COA, NLE, TAM); disjunct in e. Panhandle FL.

Origin/Endemic status: Native

Synonymy: = Ar, FNA3, GW2, K1, K3, K4, Mex, NcTx, S, S13, Tx, WH3, Kurz & Godfrey (1962); = n/a – G

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FAC
• Eastern Mountains and Piedmont: FAC
• Great Plains: FAC
• Midwest: FAC

Heliophily: 5