Agrostis subpatens Hitchc.

Agrostis subpatens Hitchcock, sp. nor
Perennial ; culms erect or somewhat geniculate at base, slender, cespitose, glabrous, about 2-noded below the middle, 20-40 cm. tall; sheaths glabrous; ligule 3 mm. long; blades mostly basal, those of the innovations slender, involute, rather lax or flexuous, scabrous, 5-10 cm. long, those of the culm flat, 1 mm. wide, or involute; panicle narrow, somewhat loose, brownish, erect, 6-15 cm. long, the axis scabrous, the branches ascending or appressed, scabrous, verticillate, some naked at base, with short ones intermixed, floriferous from base, the lower as much as 5 cm. long, the lateral pedicels mostly shorter than the spikelets; glumes somewhat unequal, acuminate, scabrous on the keel above, about 3 mm. long; lemma about 2 mm. long, the callus short-bearded, the hairs 0.3 mm. long.
Perennis; culmi erecti caespitosi 20-40 cm. alti; ligula 3 mm. longa; laminae involutae graciles scabrae 5-10 cm. longae; panicula angusta subpatens erecta 6-10 cm. longa, ramis appressis vel ascendentibus; glumae acuminatae paullum inaequales 3 mm. longae; lemma 2 mm. longum, aristo dorsali inframediali praeditum, callo breviter piloso, pilis 0.3 mm. longis, arista geniculata, 2 mm. exserta.
Tvpe collected on Cerro de la Muerte, altitude 3100 meters, January, 1897, (H. Pittier Herb. Inst. Phys.-geogr. Costar. no. 10470; U. S. Nat. Herb. wo. 365912).
Distribution: Known only from the type collection.