Loosely caespitose annual; culms up to 40(70) cm tall, erect or geniculately ascending, often branched from the lower nodes; leaf laminas (1.5)2–12(15) cm × 1–4 mm, flat or involute, tapering to a fine point.
Inflorescence (3.5)10–20(25) cm long; racemes 0.8–2 cm long, usually spreading, sometimes ascending, rarely reclining.