Spikelets 1-fld, articulated below the glumes, laterally compressed; glumes subequal, triangular-subulate, 1-veined, much shorter than the lemma; lemma narrowly oblong at anthesis, boat-shaped at maturity, acute, awned or awnless, 5-nerved, the lateral nerves near the involute margins; palea about equaling the lemma; plants of wet soil, with wide flat lvs and large open panicle. 25, trop.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.