Plants 100-150 mm high. Corm ovoid with oblique flat base, 8-12 mm diam.; tunics woody, concentric, ± scalloped into concave segments with fringed edges. Stem usually unbranched, smooth. Leaves 4, lower 3 ± basal and largest, blades linear, 1.2-2.0 mm wide, slightly fleshy, slightly thickened in midline, uppermost leaf inserted in middle of stem, sometimes entirely sheathing or with short free unifacial tip. Spike mostly 3-to 6-flowered, flexuose; bracts 10-15 mm long, green, becoming dry above, outer with margins united around stem for 3-5 mm, inner ± as long as outer. Flowers crepuscular, white to cream-coloured, outer tepals pale pink to reddish or brown outside, strongly scented of stocks when open; perianth tube slender, curved near apex, 10-13 mm long; tepals subequal, lanceolate, 12-14 x 2.5-3.5 mm, spreading ± at right angles to tube when fully open. Filaments ± 4 mm long; anthers 5-7 mm long, yellow; pollen white. Style branches ± 12 mm long, weakly spreading, slightly shorter or slightly longer than anthers. Capsules oblong-obovoid, 6-8 x ± 3.5 mm. Seeds angular, ± winged on angles, ± 1 mm long.
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Cormous geophyte, 80-150 mm tall, corm with oblique flat base. Leaves linear, thickened in midline. Flowers 3-6 in a flexuous spike, nodding, white to cream, brown or red outside, open at night, then fragrant, perianth tube curving downward, tepals weakly recurving, bract margins united in lower half around the spike axis.