Unbranched, weak herb, c. 15-40 cm. Rhizome thin. Leaves filiform, very thin, blunt, c. 4-6 cm, spreading. Pedicels already from the base of the plant, usually exceeding the leaves, in fruit up to c. 10 cm, patent, the lower ones reflexed. Pistil and stamens somewhat zygomorphic. Sepals ovate-lanceolate, acute, erect, 3-4 mm, with scarious margin, glabrous, c. 3-4 by 1½ mm. Petals oblanceolate, acute, with dentate upper margin, 4-8(-11) mm. Stamens glabrous, anthers varying from 1.5-3 mm, filaments longest where anthers are shortest. Ovary glandular; style c. 3 mm. Capsule transversely elliptic, with 2 shallow grooves, c. 2 by 4 mm. Seeds ellipsoid, at one end ± pointed, black, 1 mm, lengthwise ribbed, ladder-like tessellate between the ribs.
Marsh herb of shallow, seasonal swamps in Melaleuca-Acacia-Tristania-Eucalyptus savannah, at very low altitude. Fr.--03.
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