Oxalis leptocalyx Sond.

Erect, caulescent, 8-18 cm high. Bulb when mature ovoid or oblong-ovoid, often deformed, 1.5-2.5 cm long, with dark brown imbricating tunics, the younger lanceolate in outline or narrowly obclaviform, with pale brown undulate tunics. Rhizome up to 10 cm long, without underground stolons. Stem subrigid, 5-15 cm long, rarely branched, glabrous, with a few ciliate scales or abortive leaves. Leaves up to 12, usually terminally congested, rarely 1-2 cauline; petioles up to 1 cm long, the outer and the cauline often squamiform; leaflets 3, sessile, linear, often conduplicate and slightly falcate, emarginate 5-8 mm long, up to 1.5 mm broad, glabrous above, pubescent beneath, introrsely ciliate, sometimes minutely bicallose at the apex. Peduncles 2-6, 1-fld., up to 3 cm long, pubescent, with 2 lanceolate carinate ciliate callose bracts a little below the calyx. Sepals linear-lanceolate, sharply acute, 8-9 mm long, glabrous or sparsely ciliate, pale, ecallose. Corolla 1.9-2.6 cm long, rose-red or rarely white, with a rather narrowly funnel-shaped yellow tube; laminae of the petals obliquely suborbicular, with a darker red outer margin beneath, about as long as the narrow claw. Filaments sparsely glandular-pilose, the shorter 3-4.5 mm, the longer 4-6.5 mm long, unequal, acutely toothed. Ovary pubescent on the upper half, the chambers 3-6-ovuled; styles pubescent. Seeds without endosperm.