Muhlenbergia repens (J. Presl) Hitchc.

Muhlenbergia repens (Presl) Hitchc. in Jepson, Fl. Calif. 1: 111. 1912.
Sporoholus repens Presl. Rel. Haenk. 1: 241. 1S30.
Vilfa repens Trin. Mem. Acad. St.-P6tersb. VI. 62; 102. 1840. (Ba,sed on Sporoholus repens Presl.)
Muhlenbergia subtilis Nees. Linnaea 19: 689. 1847. (Type from Mexico, Aschenborn Z06.)
Perennial, with widely creeping scaly rhizomes; culms decumbent, branching, spreading, the flowering branches 5-20 cm. long; sheaths glabrous; ligule rounded, 0.5-1 mm. long, broadly decurrent; blades mostly 1-2 cm. long, flat or soon involute, glabrous or nearly so beneath, scabrous-pubescent on the upper surface; panicles narrow, interrupted, 1-4 cm. long, the branches short, appressed, bearing 1-few spikelets; spikelets about 3 mm. long, the pedicels short, angled, scabrous; glumes half as long as the lemma or a little more, acutish, glabrous; lemma narrowed to a more or less apiculate summit, minutely roughened, usually darker than the glumes, the lateral nerves obscure; palea nearly as large as the lemma.
Type i.ocalit: Mexico (Haenke).
Distribution: Dry rocky or sandy open ground, Texas to Arizona; known in Mexico only from the type collection.