Calamagrostis pringlei Beal

Calamagrostis pringlei Beal, Grasses N. Am. 2: 345. 1896
Deyeuxia Pringlei Scribn.; Beal, Grasses N. Am. 2: 345, as synonym. 1896.
Culms solitary or few in a tuft, erect, glabrous, 50-60 cm. tall, with creeping rhizomes; sheaths glabrous or slightly rough; ligule 1-2 mm. long; blades flat, scabrous, 10-15 cm. long, 1-2 mm. wide; panicle narrow, rather soft, somewhat nodding, pinkish, 6-10 cm. long, the axis scaberulous, the branches capillary, scabrous, clustered, overlapping, some naked below with short ones intermixed, few-flowered; glumes narrow, acuminate, soft, scaberulous, about 5 mm. long; lemma soft, scaberulous, acuminate, 4 mm. long, the awn attached just below the middle, rather weakly geniculate, somewhat twisted below, the terminal segment exserted, about 4 mm. long; callus-hairs about 1 mm. long; rachilla 1.5 mm. long, strongly pilose with hairs as much as 2 mm. long.
Type locality: Sierra Madre, Chihuahua (Pr ingle 1422). Distribution: Chihuahua.