Muhlenbergia flabellata Mez

Muhlenbergia flabellata Mez, Repert. Sp. Nov. 17: 213. 1921
Perennial ; culms slender, erect or ascending, glabrous, about 35 cm. tall ; sheaths flabellately clustered at 2 or 3 of the nodes, strongly compressed but not keeled, closely overlapping, glabrous or the upper minutely puberulent, the culms more or less branching at these clusters; ligule thin, acute, about 5 mm. long; blades erect, continuous with the sheath, linear, flat, acute, flocculent-pubescent on the upper surface, faintly puberulent beneath, 2-5 cm. long, 1-2 mm. wide; panicles erect, narrow, 4-6 cm. long, the axis glabrous or nearly so, the branches scaberulous, appressed, floriferous from base, 1-2 cm. long, the pedicels puberulent; glumes unequal, glabrous, the first obtusish, 1 mm. long, the second broad, strongly 3-nerved, tridentate, about 2 mm. long; lemma lanceolate, brown, minutely and sparsely pilose at base, scaberulous on the upper half, awned from between 2 minute teeth, about 3.5 mm. long, the awn scaberulous, somewhat flexuous, about 5 mm. long.
Type locality: Near the summit of Cerro de Buena Vista, Costa Rica, 3100 meters altitude (Pittier. Inst. Fis.-Geogr. 3372).
Distribution: Known only from the type collection.

Muhlenbergia flabellata là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Mez mô tả khoa học đầu tiên năm 1921.