Ulmus crassifolia Nuttall. Subgenus: Oreoptelea. Section: Chaetoptelea. Phen: Jul-Oct. Hab: Bottomland forests, hardwood flatwoods; 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, Tx, WH3, Kurz & Godfrey (1962); = n/a – G