Muhlenbergia lindheimeri Hitchc.

Muhlenbergia lindheimeri Hitchc. Jour. Wash. Acad. Sci 24: 291. 1934.
Epicampes gracilis Trin. Mem. Acad. St.-Pctersb. VI. 6=: 271. 1841. (The published locality is Mexico, but the type specimen is from eastern Texas, probably collected by Berlandier.) Not Muhlenbergia gracilis (H.B.K.) Kunth.
Perennial; culms erect, slightly scaberulous or glabrous, 1-1.5 m. tall, the basal tuft of sheaths compressed-keeled; sheaths keeled, glabrous or nearly so; ligule rather thin, elongate, mostly hidden in the folded base of the blade ; blades elongate, firm, flat or usually folded, about 3 mm. wide, scaberulous or glabrous; panicle narrow, pale, rather dense, erect, 20-40 cm. long, the axis scabrous, the branches ascending or appressed, 2-5 cm. long; spikelets 2.5-3 mm. long; glumes acute to rather obtuse, scabrous-puberulent to nearly smooth; lemma about as long as the glumes, 3-nerved, glabrous to obscurely pubescent, awnless or rarely with an awn as much as 3 mm. long.
TvPK locality: Eastern Texas (Lindheimer 725). Distribution: Rocky sloi>es, Texas.