Small stemless, very slender, up to 6 cm high. Bulb ovoid, about 1.5 cm long; tunics acuminate at the apex, dark brown, smooth and shining, rarely pinnate-nerved. Rhizome 2-3 cm long, like the fibrous roots minutely pilose. Leaves 6-16, prostrate; petioles 1-2 cm long, widened below the basal articulation and often with substipulate wings; leaflets 3, broadly cuneate-obcordate or rotund-obcordate, not deeply incised, 3-7 mm long, 4-9 mm broad, copiously punctate with oblong brown calli on the under surface, the medial very shortly petiolulate, the lateral sessile. Peduncles 1-fld., 3-5 cm long, with 2 small linear alternate bracts on the upper half. Sepals ovate-lanceolate, acute, 1.5-2.5 mm long, with numerous elongate orange calli on the upper half. Corolla 1-1.4 cm long white, the slightly inflated yellow tube constricted near the base; laminae of the petals obliquely obovate, narrowly purple-margined beneath, as long as the narrow-cuneate claw. Filaments, minutely glandular-pilose, the shorter 1.5-3 mm, the longer 2.5-5.5 mm long, with longish acute teeth, the longest reflexed at the apex. Ovary glabrous or minutely glandular-pilose above, with conspicuous orange calli on the upper half, the chambers 2-3 ovuled; styles glandular-pilose. Capsule globose. Seeds without endosperm.
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Slender, acaulescent geophyte, up to 60 mm tall. Bulb tunics smooth and shining, dark brown. Leaves prostrate, leaflets 3, broadly cuneate-obcordate, speckled with oblong brown calli beneath. Flowers 1 per peduncle with alternate bracts in upper half, white, with a ± inflated yellow tube, petals purple-margined beneath.
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