Herb (4.5–) 8–33 cm high. Leaves linear, (1.8–) 3–16 cm long, (0.6–) 2–4 mm wide, (4–) 10–16-nerved. Peduncle (4.5–) 8–30 cm long, with 6–8 ribs. Sheath 15–70 mm long. Flower heads hemispherical, 2–5.5 mm long, 3–6 mm wide. Involucral bracts hyaline or straw yellow sometimes with dark apex, obovate, 1.4–3.25 mm long, 0.85–2.5 mm wide, obtuse, glabrous, strongly reflexed at maturity. Floral bracts hyaline but sometimes with dark apex, obovate or elliptic or lanceolate or oblanceolate, 1.4–2.75 mm long, 0.5–1.2 mm wide, acute to acuminate, glabrous. Receptacle glabrous, conical. Male flowers 0.65–1.6 mm long; sepals 2, free, hyaline, linear, 0.45–0.95 mm long, 0.06–0.16 mm wide, acute or obtuse or truncate, pubescent with hyaline hairs in apical fringe and marginal or rarely glabrous; petals 2, hyaline, equal, triangular, acute, glabrous or pubescent with hyaline hairs in apical fringe; stamens 4; anthers black. Female flowers: sepals 2, hyaline but mostly with dark tips, equal, navicular and geniculate, lacking dorsal keel or wing or rarely slightly dorsally keeled, 0.9–1.7 mm long, 0.13–0.3 mm wide, acute, pubescent with hyaline hairs on keel or rarely glabrous; petals 2, hyaline, equal, linear, 0.7–1.3 mm long, 0.05–0.1 mm wide, acute to obtuse but irregularly divided, pubescent with hyaline hairs in apical fringe and on margins; ovary 2-locular. Seeds 0.35–0.43 mm long, 0.26–0.35 mm wide; epidermal cells with even wall thickenings.
Creek margins, Melaleuca swamps, in sandy soils, on edge of freshwater lake in sand dunes, in black soil.
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