觿茅(原亚种) xi mao (yuan ya zhong)

Dimeria hirtella B. S. Sun; D. tenera Trinius.

Culms 3–40 cm tall. Racemes 2–3, 1–6 cm. Spikelets 1.7–3 mm; lower glume shorter than spikelet, dorsally scabrid, papery, margin membranous; upper glume with rounded midline or sharply keeled only at apex. Fl. and fr. Oct–Nov.

Streams, moist places; below 2000 m. Anhui, Guangdong, Guangxi, Jiangsu, Jiangxi, Taiwan, Yunnan, Zhejiang [India, Japan, Korea, Malaysia, Philippines; Australia].