Hitchcock, Albert S. 1927. The grasses of Ecuador, Peru, and Bolivia. Contr. U. S. Natl. Herb. 24: i-xx, 291-556.
Description - Spikelets 1-flowered, disarticulating below the glumes, strongly compressed laterally ; glumes equal, ciliate on the keel ; lemma about as long as the glumes, awned on the back.