HABIT Annual. Culms erect, or decumbent; 30-60 cm long. Ligule a ciliolate membrane. Leaf-blades flaccid. INFLORESCENCE Inflorescence composed of racemes. Racemes borne along a central axis; spreading, or deflexed; unilateral; bearing few fertile spikelets; bearing 1-4 fertile spikelets on each. Central inflorescence axis flattened. Rhachis deciduous from axis; narrowly winged; angular; terminating in a barren extension; extension subulate. Spikelet packing abaxial; distant. Raceme-bases cuneate. Spikelets appressed; subtended by an involucre. Fertile spikelets pedicelled; 1 in the cluster. Involucre composed of bristles. Involucral bristles deciduous with the fertile spikelets. Pedicels oblong. FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; dorsally compressed; 3.5-5 mm long; falling entire; deciduous with accessory branch structures. GLUMES Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; membranous; without keels; 3-7 -veined. Lower glume apex truncate, or obtuse. Upper glume ovate; membranous; without keels; 11 -veined. Upper glume apex acute. FLORETS Basal sterile florets barren; with palea, or without significant palea. Lemma of lower sterile floret ovate; membranous; 9-11 -veined; acute. Fertile lemma elliptic; coriaceous; without keel. Lemma surface striate, or punctate. Lemma margins involute. Palea coriaceous. FLOWER Lodicules 2; fleshy; truncate. Anthers 3. DISTRIBUTION Australasia.