Longtongue Muhly

Muhlenbergia longiligula Hitchc. Am. Jour. Bot. 21: 136
1934.
Epicampes ligulaia Scribn.; Vasey, Contr. U. S. Nat. Herb. 3: 58. 1892. (Basis of Muhlenbergia
longiligula Hitchc.) Not Muhlenbergia ligulaia Scribn. & Merr. Epicampes anomala Scribn.; Heal, Grasses N. Am. 2: 311. 1896. (Type from Chihuahua, Pringle
1423. An abnormal form.) Not Muhlenbergia anomalis Fourn. 1886. Epicampes distichophylla var. mutica Scribn.; Real, Grasses N. Am. 2: 308. 1896. (Type from
Arizona, Tourney 740.) Epicampes siricta var. mutica Jones, Conlr. West. Bot. 14: 6. 1912. (Based on E. distichophylla
var. mutica Scribn.)
Perennial; culms erect, densely cespito.se, glabrous, about 1 m. tall, the base hard, pale, cylindric, the lower sheaths expanded, overlapping but not strongly compressed-keeled; sheaths glabrous; liguIc firm, about 1 cm. long, broadly decurrent along the summit of the sheath; blades elongate, flat to subinvolute, very scabrous, 2-5 mm. wide; panicle narrow, somewhat loose, erect, pale or dark, 20-40 cm. long, the axis scaberulous, the branches ascending or appressed, the lower as much as 10 cm. long; glumes subequal, acutish, usually glabrous, 2-3 mm. long; lemma about as long as the glumes or a little longer, glabrous, awnless, or rarely with a minute awn.
Type locality*: Santa Rita Mountains. Arizona {Pringle in 1884).
DisTRiBCTiON': Mountain slopes and rocky pine woods, western New Mexico, Arizona, southern Nevada. Sonora, and Chihuahua.