Zoysia matrella (L.) Merr. in Philipp, Journ. Sci. Bot. 7: 320. 1912. Hsu, Fl. Taiwan 5: 508. 1978; Koyama, Grass. Jap. Neighb. Reg. 289. 1987.
Plant dwarf, with creeping rhizome or stolon. Blade narrow, 4-5 cm long by 1-2 mm wide; ligule a ring of hairs, minute, about 0.1 mm long; sheath-mouth sparingly covered with long silky haris. Inflorescence a single spike-like raceme, about 2 mm long. Spikelets 1-flowered, about 2.5 mm long, laterally compressed, lanceolate, shortly pedicelled; upper glume as long as the spikelet, broadly ovate, smooth, coriaceous, margins thinner and inrolled, 1-nerved, lanceolate; palea 1/2 the length of the lemma, hyaline, lanceolate.
TAIPEI: Shihlin Tanaka & Shimada 17785*. ILAN: Chiaochi, Hsu 814, Ilan, Kuo 93. HSINCHU: Hungmao, Kudo & Suzuki s. n. Apr. 9, 1929. TAICHUNG: Tatushan, Hsu 9125. CHANGHUA: Fwubao, Guo et al. 068. YUNLIN: Huwei, Yamamoto et al. 1011. TAINAN: Chiali, Morimoto 634. PENGHU: Kudo & Mori 3099. PINGTUNG: Linpien, Yamamoto & Suzuki 1617. TAITUNG: Botel Tobago, Sasaki s. n. June 5, 1926, Hsu 9359.
Widely distributed in the tropics of Asia, and now introduced into America as a lawn grass.
It is a good sand-binder and is very common in Taiwan.