Annual. Leaves flat, gradually acuminate, scabrid on the margins and nerves, (2-)3-4(-5) mm wide; Inflorescence consisting of several very dense glomerules, contracted into a subtriangular-ovoid to subglobose, lobed head, 1½-3 cm across. Stamens 3;
Asia-Tropical, NE. New Guinea present, Sepik Distr present, W. New Guinea present
Malesia: W. New Guinea, NE. New Guinea (Sepik Distr.).
Differs from C. pygmaeus by the stouter stems, the larger heads, the broader leaves, the less densely imbricate, distinctly nerved glumes, with smooth keel, the 3 stamens, the crested anthers, the broader styles, the number of stigmas (preponderantly 3), and the larger nuts.