HABIT Annual. Culms erect; slender (1/1); 8-18.99-40 cm long. Lateral branches ample (2/2). Ligule an eciliate membrane. Leaf-blades linear (2), or lanceolate (1). INFLORESCENCE Inflorescence composed of racemes; subtended by a spatheole. Spatheole linear; membranous. Racemes single (1), or paired; bearing few fertile spikelets; bearing 3-4 fertile spikelets on each (2/2). Rhachis fragile at the nodes; flattened (2/2). Rhachis internodes linear. Rhachis internode tip oblique; cupuliform. Raceme-bases filiform. Spikelets in pairs. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1 in the cluster. Pedicels linear. STERILE SPIKELETS Basal sterile spikelets well-developed. Companion sterile spikelets well-developed; persistent. Companion sterile spikelet callus square. Companion sterile spikelet glumes muticous (1), or awned. FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate; laterally compressed; 1.66-6.542-12 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus oblong (2), or cuneate (1); pilose (1/2), or bearded (1/2); base obtuse (1/2), or acute (1/2); attached obliquely. GLUMES Glumes exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; coriaceous; 2-keeled; winged on keel; 2-5 -veined (1/2). Lower glume intercarinal veins absent (2/2). Lower glume apex acute (2), or acuminate (1); muticous (2), or awned (1). Upper glume oblong; membranous; with undifferentiated margins (2), or hyaline margins (1); 1-keeled; 3 -veined (1/2), or 5-7 -veined (1/2). Upper glume apex lobed; 3 -fid; awned; 1 -awned. FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; hyaline; 2 -veined (2/2). Fertile lemma oblong; membranous; keeled; 3 -veined (2/2). Lemma apex lobed; 2 -fid; incised 0.15 of lemma length; awned; 1 -awned. Principal lemma awn from a sinus; geniculate. Palea hyaline (2), or membranous (1); 2 -veined (2/2). FLOWER Anthers 3 (2/2). DISTRIBUTION Tropical Asia.