Plant 1/2-2 1/2 ft. high, with 1 or more stems, simple or branched at the base, puberulous on one side of the upper part, with the lower internodes short and the middle and upper 1 1/4-3 1/4 in. long; leaves erect or ascending, 1-3 1/2 in. long, 1/3-1 1/2 lin. broad, linear, acute, with revolute margins, glabrous; umbel solitary and terminal or 2-4 to a stem and racemose, subglobose, 10-25-flowered; peduncles 1-10 in. long, erect, puberulous on one side or all round; pedicels 1 1/2-3 lin. long, puberulous; sepals suberect, 1-1 1/2 lin. long, 1/2 lin. broad, lanceolate or ovate, acute, puberulous; corolla-lobes 2-2 1/2 lin. long, 3/4-1 lin. broad, oblong, obtuse, erect, recurved or shortly revolute at the tips, glabrous on both sides; corona-lobes erect, 1 lin. long, about 1/2 lin. broad at the upper part, subspathulate-hastate or linear-oblong, with a triangular projection on each side at about the middle, very obtuse, flat on the back, with a transverse ridge-like or broadly deltoid flap above the middle of the inner face pressed down upon the tops of the closely contiguous and rather inconspicuous keels; staminal column 1-1 1/4 lin. long; anther-appendages ovate or oblong, very obtuse, concave, erect around the base of the stout clavate style-apex, which is produced 1/2-3/4 lin. beyond them and the corona-lobes, often globose at the top; follicles solitary, erect, about 3 in. long, 1/4 in. thick, narrowly fusiform, nearly equally tapering at both ends, puberulous; seeds about 1/4 in. long and 1/8 in. broad, ovate, flattish, with broad margins, minutely papillate rugulose or sub-scabrid on the disk on both sides, light brown.
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Perennial, sedge-like geophyte, 120-465 mm high. Stems solitary. Leaves erect, linear, 37-67 x 0.7-3.0 mm. Inflorescences terminal, compact umbels, 10-25-flowered; peduncle 25-170 mm long. Flowers light green, brown-marked. Corolla erect, oblong, 4.5-5.5 x 1.5-2.5 mm, apex blunt. Staminal column not stipitate. Staminal corona white or greeny cream-coloured; lobes columnar, apex inflated, 2.0-2.5 mm high, 1.0-1.5 mm wide; 2 vertical ridges on inner surface terminating in upper 1/3 by horizontal, deltoid tissue flap, level with style-stigma-head; interstaminal corona lobes minute, tooth-like. Anther: appendages resting against elongated, large, club-like protrusion of style-stigma-head. Flowering time Nov.-Feb. Follicles solitary, erect, stalk straight, narrowly fusiform, smooth.
Perennial herb, 150-750 mm high, marsh-loving. Stems 1-few, erect or lax-ascending from a rootstock. Leaves with blade linear erect or ascending, margins revolute, glabrous. Flowers: in globose, terminal, long-peduncled umbels, solitary or 2(-4) to a stem; corona lobes hastately subspathulate; corolla green and white, brownish white and pink; Nov.-Apr. Fruit a follicle.
Perennial herb, 0.15-0.75 m high. Leaves linear, erect or ascending with revolute margins. Umbels globose, terminal, long-peduncled, solitary or 2 (rarely 3 or 4) to a stem. Flowers green and white, brownish, white and pink.