Rattail Grass

Considered to be an excellent fodder grass.

Perennial. Culms erect, wiry, 30–100 cm tall, nodes bearded or glabrous. Leaf sheaths glabrous or hispid with tubercle-based hairs; leaf blades linear, flat, tough, pale green, 10–45 × 0.2–0.7 cm, scabrid, tapering to a filiform apex; ligule 2–3 mm. Raceme 3–12(–18) cm, straight or gently curved; rachis internodes and pedicels stoutly linear, 3.5–5 mm. Sessile spikelet yellowish green, 7–9 mm; lower glume narrowly oblong, deeply grooved between keels in lower part, with 6 prominent laterally placed intercarinal veins, inner veins anastomosing toward apex, apex scarious, 1/4–1/3 glume length, shortly 2-toothed; upper glume with straight, 7–13 mm awn; awn of upper lemma stout, 1.7–3.5 cm, column brown, ciliolate along spiral, limb pallid. Pedicelled spikelet usually flushed purple, 7–10 mm, lower glume conspicuously 7-veined, margins ciliate. Fl. and fr. Jul–Oct.

Tufted perennial; culms 30-100 cm high, wiry. Leaf-blades flat, 5-40. cm long wide, glaucous, long acuminate to a filiform tip. Raceme 3-12 gently curved. Sessile spikelet 6-10 mm long, laterally compressed; lower glume narrowly oblong-elliptic, thinly coriaceous with a membranous tip up to a quarto its length, 2 keeled, concave between the keels, lyrately nerved with 2-3 closely spaced nerves adjacent to each keel; upper lemma with an awn 2-4 cm long, minutely ciliolate along the spiral. Pedicelled spikelet lanceolate, 6-10 mm long, purplish, ciliate; lower glume with a mid-nerve and 2-3 conspicuous lateral nerves adjacent to each keel.

Distribution: Pakistan (N.W.F.P.); tropical Africa and Arabia, extending through India to China, and southwards to Australia.

Dry grasslands; at low elevations. Hainan, Yunnan [India, Indonesia, Laos, Myanmar, New Guinea, Pakistan, Philippines, Sri Lanka, Thailand, Vietnam; E Africa, SW Asia, Australia].

Andropogon nervosus Rottler, Ges. Naturf. Freunde Berlin Neue Schriften 4: 218. 1803 ["nervosum"]; Ischaemum laxum R. Brown; I. nervosum (Rottler) Thwaites.

Sehima nervosum là một loài thực vật có hoa trong họ Hòa thảo. Loài này được (Rottler) Stapf miêu tả khoa học đầu tiên năm 1917.

沟颖草（学名：Sehima nervosa）为禾本科沟颖草属下的一个种。