Dichanthelium commutatum (J.A. Schultes) Gould ssp. commutatum . Variable Witchgrass. Phen: May-Oct. Hab: Low, shaded, moist woodlands and woodland edges, and dry, thin, often rocky woods and thickets. Dist: ME south to FL, west to MI, MO, OK, and TX; Mexico.
Origin/Endemic status: Native
Taxonomy Comments: Also see commentary under D. commutatum ssp. equilaterale and ssp. joori.
Synonymy: = FNA25, NY, Pa, Tn; = Dichanthelium commutatum (Schult.) Gould var. commutatum – Mo1, Va; < Dichanthelium commutatum (Schult.) Gould – Il, K1, K3, Mex, Freckmann et al. (2008); > Dichanthelium mutabile (Scribn. & J.G.Sm. ex Nash) Wipff – Wipff (2020); < Panicum commutatum Schult. – C, RAB, Tx; > Panicum commutatum Schult. – HC, S, WV; > Panicum commutatum Schult. var. commutatum – F, G; < Panicum divergens Kunth – NcTx; > Panicum mutabile Scribn. & Sm. ex Nash – F, G, HC, S
Hover over a shape, letter, icon, or arrow on the map to see what it means.