Paspalum pilosum Lam.

Paspalum pilosum Lam. Tab. Encyc. 1 : 175. 1791
Panicum monosiacfiyum H.B.K. Nov. Gen. & Sp. 1 : 96. 1815. Not Paspalum monostachvum Vasey, 1S84. r j'
Dimorphosiachys monostachya Fourn. Mex. PI. Gram. 14. 1881.
Stems up to 7 dm. tall, sometimes branching at the base, often with leafless flower-bearing branches from the uppermost axil ; leaf-sheaths ciliate, hispid at the apex, otherwise glabrous ; blades up to 2 dm. long, 3-6 mm. wide, flat, linear, long-acuminate, papillose-hispid on both surfaces and also often pubescent with shorter soft hairs, the midnerve very prominent on the lower surface; raceme 1, or sometimes 2, 6-10 cm. long, usually curved, the rachis about 1 mm. wide, usually setiferous; spikelets in pairs, 2,2-2.8 mm. long, 1.3-1.6 mm. wide, elliptic to obovate, the first scale of the lower spikelet half as long as the spikelet, acute, the corresponding scale of the upper spikelet less than one fourth as long as the spikelet, sometimes rudimentary or wanting, the second and third scales 5-nerved, the fruiting scale yellowish, roughened with manifest papillae.
Type locality : Tropical America.
Distribution : Costa Rica ; also in tropical South America.