Erect, caulescent, often caespitose, 5-10 cm high, more or less clothed with both short simple and longer gland-tipped hairs. Bulb ovoid, attenuate at both base and apex, 1-2 cm long, with hard rigid smooth blackish tunics. Rhizome short, slender. Stem 5-20 cm long, rarely branching freely, usually with a few scales on the lower part, leafy above, sometimes with very short abortive leafy branchlets, pilose with simple and gland-tipped hairs, rarely glabrous. Leaves both cauline with squamiform petioles 1-2 mm long, and terminally congested with terete petioles 0.5-2 cm long; leaflets 3, cuneate-obovate, cuneate or linear-cuneate, emarginate, often conduplicate, 3-9 mm long, glabrous above, silky-pubescent and copiously dotted with large calli beneath, ciliate with gland-tipped hairs on the medial nerve and margins. Peduncles 1-fld., apical, very rarely cauline, mostly 0.5-2 cm long, like the sepals pilose with simple and gland-tipped hairs, with 2 alternate linear callose bracts close to the calyx. Sepals lanceolate, oblong-lanceolate or oblong, acute or subobtuse, 3-4 mm long, red-margined, with 2-6 conspicuous elongate apical calli usually extending down to the middle, Corolla 1.4-2 cm long, glandular, white or pink, with a funnel-shaped yellow tube; laminae of the petals obovate, as long as the claw, with a broad reddish-purple outer margin beneath, sometimes with a few orange calli near the apex. Filaments, the shorter 1.5-3.5 mm long, the longer 2.5-6 mm long, minutely glandular-pilose, with rather acute teeth. Ovary more or less glandular, the chambers 1-ovuled; styles glandular-pilose, sometimes with simple hairs admixed. Seeds without endosperm.
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