Stipa editorum E. Fourn.

Stipa editorum Fourn. Mex. PI. Gram. 75. 1886
Culms erect, glabrous, closely cespitose, 80-100 cm. tall, the scales at the somewhat bulbous base felty-pubescent; sheaths glabrous, more or less pilose at the throat; ligule 3-6 mm. long, thin; blades flat or usually loosely involute, tapering to a fine involute point, glabrous beneath, more or less scabrous toward the point, 20-40 cm. long, 2-3 mm. wide on the culm, very slender on the innovations; panicle narrow, rather soft, 10-20 cm. long, or even longer, the branches appressed, several at each node, many-flowered, the shorter ones floriferous from base, the longer ones naked at base, as much as 10 cm. long, the pedicels slender; glumes about 9 mm. long, subequal, narrow, hyaline, acuminate to a fine point, 1 -nerved, the second with a faint lateral pair of nerves, the first scaberulous on the keel; lemma narrowly fusiform, pale, 5-6 mm. long, the callus acute, rather slender, nearly 1 mm. long, densely barbed with white hairs, the body appressedvillous all over, the hairs at the summit few, about 1 mm. long; awn very slender, 3-4 cm. long, scaberulous, flexuous, usually rather obscurely twice geniculate; anthers with a minute tuft of hairs at summit.
Type locality: Southern Mexico (Karwinsky 1009c).
Distribution: Dry open ground and rocky hills, central and southern Mexico.