Internodes of rhizome 1-3 cm. Scales ovate, membranous. Leaves narrowly linear, 2-8 cm × 0.5-0.8 mm, veins 3, midvein conspicuous, lateral teeth inconspicuous, apex truncate or obtuse; sheaths 1-1.4(-2.8) cm. Flowers small. Peduncle of male flowers ca. 1 cm; anthers ca. 0.5 mm, sometimes with scales at base. Style of female flowers lateral, ca. 1.3 mm. Fruitlet ovoid, ca. 2 mm; beak lateral, ca. 1 mm.