Perennial, glabrous except for the glumes, light green. Leaves ⅓-½ as long as the stems, falcate, flat, obtuse, apiculate, scabrid on the margins in the upper part, 1½-2 mm wide; Inflorescence simple or subcompound, narrow, rather dense, with 2-7 spikelets, 3-4 cm long. Stamens 3;
Asia-Tropical: Malaya (Peninsular Malaysia present), P. Langkawi present
Malesia: Malay Peninsula (P. Langkawi).