Microstegium geniculatum (Hayata) Honda

Usually growing in underforest roadside of mountainous regions.

Culm geniculate, about 1 mm in diameter. Blade 6-8 cm long by 5 mm wide; ligule tongue-shaped, pubescent on the back. Racemes 4, subdigitately arranged, 5-8 cm long. Spikelets paired, monomorphic, the upper pedicellate, the lower sessile, about 3.5 mm long; rachis-joint longer than the spikelet. Lower glume linear, as long as the spikelet, subcoriaceous, 2-keeled, short ciliate along keels, furrowed and siliceous on the back, 2-toothed at the apex; upper glume deltoidlanceolate, 1-keeled, margins inrolled, fimbriate, about 3 mm long, with a slender awn of about 3.5 mm long. Lower floret reduced. Upper floret minute, chartaceous, lemma about 0.3 mm long, with an awn 14-20 mm long.

Pollinia geniculata Hayata, Icon. Pl. Formos. 7: 73. 1918.
Microstegium fauriei Honda subsp. geniculatum (Hay.) Koyama, Grass. Jap. Neighb. Reg.429. 1987

Microstegium geniculatum là một loài thực vật có hoa trong họ Hòa thảo. Loài này được (Hayata) Honda mô tả khoa học đầu tiên năm 1930.

曲膝茎莠竹（学名：Microstegium geniculatum）为禾本科莠竹属下的一个种。