Annuals or short-lived perennials. Culms several, 28–35 cm tall, 0.6–0.8 mm in diam. base obliquely ascending, nodes 3 or 4, 1 or 2 exserted, scabrid below nodes. Leaf sheaths sparsely scabrid, 4.5–9 cm, 1.2–2 × as long as blade, uppermost closed for 1/2 of length; blades flat, thin, 2.5–8 cm × 1.5–2 mm, abaxially smooth to scabrid, adaxially and margins scabrid, slender prow-tipped; ligule 0.7–1.2 mm, abaxially scabrid, apex truncate to obtuse, erose, collars glabrous. Panicle open, 8–15 × 2–4 cm, longest internodes 2–3.5 cm; branches ascending to spreading, flexuous, 2 per node, capillary to slender, proximally smooth to scabrid, distally scabrid along weak angles, longest 3–7 cm with 5–13 spikelets in distal 1/3. Spikelets oblong to lanceolate, 4.5–5 mm, florets 2 or 3; vivipary absent; rachilla internodes 0.5–1 mm, smooth, glabrous; glumes subequal to slightly unequal, 2–2.5 mm, keel scabrid, apex acuminate, purplish violet, lower glume broadly subulate, 1.5–2.2 mm, 1-veined, upper glume 2.1–2.6 mm, 3-veined; lemmas oblong, 2.7–3.3 mm, apex acute, keel basally sparsely pilulose, area between veins scabrid, glabrous, intermediate veins moderately prominent; callus glabrous; palea shorter than lemma, scabrid on and between keels. Anthers 0.7–0.8 mm. Fl. and fr. Jul.
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