2a. ssp. fascicularis (Lam.) N. Snow

L. fascicularis (Lam.) A. Gray (bearded sprangletop)

Diplachne fascicularis (Lam.) P. Beauv.

D. acuminata Nash

Leaf sheaths with the ligules 2–6 mm long. Inflorescences with the base often enclosed in the uppermost leaf sheath. Lower glume 2–3 mm long. Upper glume 2.5–5.0 mm long, elliptic‑ovate. Lemmas 2.5–5.0 mm long, lanceolate, sharply pointed at the tip, at least some of the lemmas with an awn 0.5–2.5 mm long. Anthers 0.2–0.5 mm long. Fruits 1–2 mm long. 2n=20. July–October.

Scattered, most commonly in counties adjacent to the Missouri and Mississippi Rivers (U.S. and adjacent Canada, Mexico, Central America, South America, Caribbean Islands). Banks of streams and rivers, margins of ponds and lakes, saline marshes and seeps, openings of bottomland forests, and rarely moist depressions of glades; also roadsides, railroads, ditches, and open, disturbed areas.