Eccoilopus formosanus (Rendle) A. Camus in Ann. Soc. L. Lyon. 70: 93. 1923. Hsu, Fl. Taiwan 5: 644. 1978.
Spodiopognn formasanus Rendle in Journ. Linn. Soc. 36: 351. 1904.
Spodiopogon tohoensis Hayata,Icon. Pl. Form. 7: 69. f. 38. 1918.
Eccoilopus taiwanicus Honda, Bot. Mag. Tokyo 56: 15. 1942.
Rhizome stout, woody. Culms erect, 50-130 cm high. Blade glabrous, base stipitate, up to 50 cm long; ligule membranous, truncate, 2-3 mm long; sheath loose, soft hairy at the mouth. Panicle open, branches whorled, 4-10 cm long, tipped with spikelets on the terminal part; rachis 6-10-nodes, nodes hairy. Pedicels swollen and hairy at the summit. Spikelets paired, the one long pedicellate and the other short pedicelled. Spikelets lanceolate, about 5 mm long, pubescent on the basal part; lower glume coriaceous, 7-9-nerved, sparingly soft hairy; upper glume nearly as long as the spikelet; 7-nerved, sparingly hairy along the midrib; lower lemma elliptical-lanceolate, membranous, toothed at the apex, 1/3 as long as the spikelet; upper lemma oblong, deeply cleft, with an awn of 1-4 mm long, protruding from the sinus; upper palea oblong-lanceolate, irregularly toothed, l/3 the length of the lemma; anthers 2-3 mm long.
NANTOU: Tongpushan, Sasaki s. n. Oct. 1905.KAOHSIUNG: Liukuei, Okamoto 51.
Endemic to Taiwan.