单序草(原变种) dan xu cao (yuan bian zhong)

Phleum indicum Houttuyn, Nat. Hist.13: 198. 1782; Andro-pogon amaurus Buse, nom. illeg. superfl.; A. diversiflorus Steudel; A. firmandus Steudel; Eulalia praemorsa (Nees ex Steudel) Stapf ex Ridley; Pollinia praemorsa Nees ex Steudel; Polytrias amaura Kuntze, nom. illeg. superfl.; P. diversiflora (Steudel) Nash; P. praemorsa (Nees ex Steudel) Hackel.

Spikelets 3 per node; lower glume long villous, hairs extending beyond glume apex; upper lemma cordate.

Grassy spaces. Hong Kong [Indonesia, Malaysia, Myanmar, New Guinea, Philippines, Vietnam].

This grass has been widely known as Polytrias amaura, based on Andropogon amaurus, which is a superfluous name for A. diversiflorus.