接受名：Trichophorum subcapitatum (Thwaites et Hook.) D. A. Simpson (accepted name)

异名：Baeothryon subcapitatum (Thwaites et Hook.) T. Koyama (synonym)、Scirpus morrisonensis Hayata (synonym)、Scirpus subcapitatus Thwaites et Hook. (synonym)、Scirpus subcapitatus Thwaites et Hook. var. morrisonensis (Hayata) Ohwi (synonym)、Trichophorum morrisonense (Hayata) Ohwi (synonym)

Scirpus subcapitatus var. morrisonensis (Hayata) Ohwi, Cyper. Jap. II in Mem. Coll. Sci. Kyoto Imper. Univ. , ser. B, XVIII (1944) 100: Raymond in Nat. Canad. LXXXIV (1957) 143; T. Koyama in Journ. Fac. Sci. , Univ. Tokyo, sect. 3, Bot. VII (1958) 531——Scirpus morrisonensis Hayata, Fl. Montan. Formos. (1908) 230, f. 16 et Ic. Pl. Formos. VI (1916) 115 f. 32——Trichophorum morrisonense (Hayata) Ohwi, l. c., pro syn.

本变种与种的区别于植株矮小，稈极细；小穗单个顶生，每个小穗只有少数几朵花。花果期7-9月。

产于我国贵州（梵净山）和台湾西南部；生长在较高的一山上。