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Tufted annual; culms 5–40 cm. high, erect.. Leaf-blades linear, 2–15 cm. long, 1–2 mm. wide, flat, or convolute when dry, loosely pilose.. Panicle linear, spiciform, 1–14 cm. long, 3–6 mm. wide, the short primary branches subverticillate and appressed to the axis.. Spikelets 1.8–2.5 mm. long; lower glume narrowly lanceolate, 1.2–1.5 mm. long, 2/3 as long as the spikelet; upper glume ovate, as long as the spikelet; lemma ovate, slightly shorter than the spikelet; anthers 3, 0.4 mm. long.. Grain lenticular to ellipsoid, 1–1.4 mm. long.
Spikelets 1.5–2.1 mm long, reddish-brown; inferior glume (1/2)3/5–3/4 the length of the spikelet, narrowly lanceolate to lanceolate, nerveless, glabrous, acute to acuminate at the apex; superior glume as long as the spikelet, ovate, 1-nerved, glabrous or minutely hispidulous, acute at the apex; lemma as long as the spikelet or almost so, similar to the superior glume but glabrous; anthers 3, 0.3–0.6 mm long.
Loosely caespitose annual; culms up to 45 cm tall, erect, often branched below; leaf sheaths chartaceous, glabrous on the back, glabrous or pilose near the margins; leaf laminas 1.5–7.5 cm × 1–3 mm, flat, folded or involute, sometimes filiform, loosely pilose on the surface with tubercle-based hairs or glabrous, pectinate on the margins with stiff tubercle-based setae, acute at the apex.
Panicle 1.5–13 cm long, linear and spiciform; primary branches verticillate or subverticillate, glabrous, with elongated glands, the spikelets racemosely arranged along the whole length.
Grain 1–1.3 mm long, elliptic, laterally compressed.
Small annual, 15–30 cm. high
