Baumea Gaudich.
Nut surmounted by the thickened stylar base scarcely half as long as the body or almost obsolete. Lowermost flower perfect Baumea
Either leaves 4-angled or flat and 1–4 mm wide
Leaves flattened, striate but with raised midribs, up to 150 cm long
Leaves and culms smooth. Leaves with yellowish-brown sheaths
Lowest cluster of spikelets on each culm shorter than the next internode above on the culm. Inflorescence lax, usually 8–20 cm long. Nut pale red-brown, c. 3 mm long. Coast. Damp, sandy soils Baumea muelleri
Lowest cluster of spikelets on each culm equal to or shorter than the next internode above on the culm. Inflorescence compact, usually 2–4 cm long. Nut red-brown, c. 2 mm long. Coast. Damp, sandy soils Baumea acuta