Stoloniferous perennial up to 120 cm tall, ascending, rooting at the lower nodes; ligule a short membrane; leaf lamina 3–19 cm × 1–5 mm, linear, flat or involute, tapering to a fine point.
Inflorescence 8–19 cm long, narrowly cylindrical; racemes numerous, slender, 1.5–6 cm long, flexuous, often ± appressed to the axis.
Annual up to 1 m. high, sometimes erect but usually the culms decumbent and stolon-like at the base
Caryopsis 0.7–0.8 mm long, obovate, trigonous in section.