Dwarf, stemless, entirely glabrous, 2-4 cm high. Bulb structure large; tunics very numerous, loose, lanceolate or oblong, acute, brown, splitting longitudinally. Leaves about 12 or more numerous; petioles 1-3.5 cm long, much widened and 3-nerved below the basal articulation; leaflets 3, the medial cuneate-obcordate, not deeply incised, rather thick (glaucous ?) 4-7 mm long and broad, with several brownish calli towards the apical margin, the lateral oblique, usually smaller. Peduncles 1-fld., as long as or rather longer than the leaves, with 2 alternate or subopposite bracts above the middle. Sepals broadly ovate, obtuse, 2.5-4 mm long, sometimes with several elongate reddish-brown calli on the upper half. Corolla yellow, 1.2-1.4 cm (7-8 mm long in type), with a widely funnel-shaped tube; petals cuneate, subtruncate at the apex. Filaments, the longer about 5 mm long, gibbose or bluntly toothed. Ovary with a few reddish calli near the apex, the chambers 2-3-ovuled; styles minutely glandular-pilose. Seeds without endosperm.
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Like O. sonderiana but entirely glabrous and flowers yellow with a widely funnel-shaped tube, and peduncular bracts alternate or subopposite in upper half.