Trisetum virletii E. Fourn.

Trisetum virletii Kourn. Mex. PI. Gram. 108. 1886
Trisetum bambuiiforme Fourn. Mex. PI. Gram. 108. 1886. (Type from Valley of Mexico, Bourgeau 1304.)
Perennial; culms stout, many-noded, as much as 7 mm. thick near base, 1-2 meters tall, glabrous or scaberulous, often bearing fascicled short branches at the nodes; sheaths .scaberulous, the lower bladeless; ligule rounded, dentate, scaberulous, as much as 5 mm. long; blades flat, very scabrous, sometimes sparsely pilose on the upper surface, elongate, as much as 1 cm. wide, tapering to a long fine point ; panicle large, many-flowered, rather dense but spreading, 15-30 cm. long, 10-15 cm. wide, the capillary branches scabrous, numerous in fascicles, naked below, as much as 12 cm. long, branching; spikelets 3-flowered or 4-flowered, sometimes 2-flowered, 5-S mm. long, the hairs of the rachilla 2 mm. long, the callus-hairs short; glumes scabrous on the keels and nerves, the first 3-4 mm. long, l-nersxd, the second longer and broader, 3-ner-ed; lemmas scabrous, acute, about 5 mm. long, the nerves rather faint, scarcely excurrent; a^vn attached about 2 mm. below the scarcely bifid tip, spreading, exserted, scabrous.
Type LOCALirv: San Luis Potosi (,Virlel 1384).
Distribution: Open woods and cool mountain sloi^es, altitude 2000-3000 meters, San Luis Potosi to southern Mexico.

Trisetum virletii là một loài thực vật có hoa trong họ Hòa thảo. Loài này được E.Fourn. miêu tả khoa học đầu tiên năm 1886.