Dwarf, caulescent, 4-7 cm high, entirely glabrous. Bulb lanceolate in outline, about 3 cm long; tunics more or less lanceolate, attenuate, sharply pointed, blackish-brown, often sparsely clothed with retrorse hairs. Rhizome glabrous, with a few small scales. Stem 2-4 cm long, foliate on the upper part, with a few scales below. Leaves loosely imbricate, patent or more or less ascending, with very short squamiform petioles; leaflets 3, sessile, linear or very narrowly linear-cuneate, conduplicate, emarginate, slightly recurved near the apex, 0.6-1.8 cm long, copiously sprinkled with linear pellucid striae which turn black in drying. Peduncles up to 10, 1-fld., axillary, slender, often 2-3 cm long, with 2 alternate linear striate bracts a little below the calyx. Sepals narrow-ovate, 2.5-3.5 mm long, minutely ciliate, striate with narrow pellucid (or when dried) black lines. Corolla 1.4-1.7 cm long, “whitish or rosy” (fide Sonder), or entirely yellow, with a funnel-shaped tube; laminae of the petals rotund-obovate, rather sparsely striate near the margin, a little longer than the attenuate claw. Filaments, the shorter 1.5-3 mm, the longer 3-5 mm long, slightly gibbose, the longest unequal. Ovary pubescent on the upper half, conspicuously callose when dried, the chambers 2-3-ovuled; styles minutely pubescent, the longest glandular-pilose on the upper part. Seeds without endosperm.
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Caulescent geophyte to 30 cm, bulb scales slender, many, with retrorse brown hairs. Leaves trifoliolate, linear-elliptic, glabrous or hairy, black linear-punctate. Flowers orange, red-purple, pink, yellow, white or cream-coloured, with yellow tube.