Quercus muehlenbergii Engelmann. Phen: Apr-May; Oct-Nov (of the same year). Hab: Slopes and bluffs, on soils derived from calcareous or mafic rocks. Dist: S. New England and ON west to WI, se. MN, and IA, south to nw. FL, TX, and n. Mexico (CHH, COA, NLE, SON, TAM).
Origin/Endemic status: Native
Taxonomy Comments: The species was originally named as "Quercus mühlenbergii", which must be corrected under the Shenzhen Code to ‘muehlenbergii’.
Other Comments: The similar Q. montana sometimes has a few leaves with somewhat sharply lobed leaves, but these are minutely mucronate and lack the well-developed callus of Q. muehlenbergii. Additionally, Q. muehlenbergii has a flaky, light gray bark, very different from the dark gray, deeply furrowed bark of Q. montana.
Synonymy: = Ar, C, F, Fl2, GrPl, K1, K3, K4, Mex, Mi, NcTx, NE, NY, RAB, Tx, Va, WH3, WV; = Quercus muhlenbergii – FNA3, Il, Pa, S, Tn, W, orthographic variant; = Quercus prinoides Willd. var. acuminata (Michx.) Gleason – G