Ischaemum aureum (Hook. & Arn.) Hack. in DC., Monogr. Phan. 6: 224. 1889. Hsu, Fl. Taiwan 5: 666. 1978; Koyama, Grass. Jap. Neighb. Reg. 455. 1987.
Spodiopogon aureus Hook, & Arn., Bot. Beech. Voy. 273. 1840.
Culm 20-30 cm tall, about 1 mm in diameter. Blade about 5 cm long by 4 mm wide; ligule chartaceous, about 1 mm long, truncate, hispid on the back. Inflorescence of 2 racemes. Spikelets paired, more or less similar; rachis-joint and pedicel thickened and swollen, about 7 mm long; lower glume coriaceous, lanceolate, 2-keeled, ciliate along keels, irregularly 2-toothed, inconspicuously several-nerved, upper margin fimbriate, shortly 2-toothed, aristate. Lower floret lanceolate, chartaceous, about 5 mm long, lemma and palea fimbriate along margins; lemma 1-nerved; palea 2-keeled. Upper floret about 4 mm long, hyaline; lemma 2-cleft, fimbriate, 3-nerved, with a stout flexuous awn of about 18 mm long, arising from the sinus; palea toothed, about 2.5 mm long. Caryopsis elliptical, about 1.5 mm long; embryo 1/2 the length of the caryopsis.
Distributed on littoral regions of the Ryukyus and Taiwan.
No Taiwan specimens have been deposited in Taiwan herbaria.