Small, slender, caulescent 4-7 cm high. Bulb ovoid or globose-ovoid, shortly attenuate, up to 1.5 cm long, with brown papery tunics. Rhizome 2-4 cm long. Stem erect, rigid, 1.5-4 cm long, rarely branched, glabrous or minutely pubescent, dark green, with 1-2 small ciliate scales. Leaves 6-16, apically congested; petioles filiform, up to 2 cm long, sparsely pubescent; leaflets 3, sessile, linear, conduplicate or involute, more or less falcate, minutely emarginate, about 1 cm long, 2 mm broad, glabrous above, sparsely pubescent beneath, sometimes inconspicuously black-dotted and with 2 red apical calli. Peduncles 1-fld., slender, apical or rarely arising from a cauline scale, glabrous or sparsely pubescent, with 2 alternate subulate pubescent bracts near the apex or a little below the calyx. Sepals lanceolate or ovate-lanceolate, 3-4.5 mm long, sparsely pubescent, ciliate, narrowly membranaceous at the margin, dark purple on the margins near the base, orange-callose above, with 2 oblanceolate orange apical calli. Corolla 1.4-2 cm long, white, with a funnel-shaped yellow tube; laminae of the petals cuneate-obovate, slightly truncate, 4-5 mm broad, often narrowly purple-streaked on the outer margin beneath, tapering to an attenuate claw. Filaments, the shorter 2.5-4 mm, the longer 4.5-6 mm Iong, sparsely glandular-pilose, edentate. Ovary oblong, cano-pubescent on the upper half, with elongate calli near the apex, the chambers 2-ovuled or 5-6-ovuled; styles often purplish, pubescent below, pluricellular-pilose above. Capsule globular or oblong, exserted. Seeds without endosperm.
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Slender, caulescent geophyte, 40-70 mm tall, with erect rigid stem. Bulb tunics papery, brown. Leaves apically congested, leaflets 3, linear, conduplicate, ± falcate, sparsely pubescent. Flowers 1 per peduncle with alternate bracts near apex, white, with a yellow tube, petals often outlined with purple beneath, sepals dark purple on margins near base, orange-callose above.
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