Oxalis perineson T.M.Salter & Exell

Slender, erect, caulescent, 7-15 cm high. Bulb ovoid, attenuate-acute or rostrate-acute at the apex, 1.5-2 cm long, with hard blackish-brown tunics. Rhizome often 6-8 cm long. Stem slender, wiry, glabrous, with 1-2 scales. Leaves 6-20, apically congested, with sparsely pubescent petioles 0.5-1.5 cm long; leaflets 3, sessile, linear, conduplicate-falcate, slightly emarginate, 0.8-1.2 cm long, 1-2 mm broad, glabrous above, sparsely pubescent beneath, inconspicuously bicallose at the apex and edged with a row of small pellucid narrow elongate calli which turn black in drying. Peduncles 1-fld., terminal or very rarely arising from the upper scales on the stem, 2-3 cm long, pubescent, with 2 alternate subulate bracts near the calyx. Sepals narrow-linear, sharply acute, 4-7 mm long, pubescent, ciliate. Corolla 1.7-2.1 cm long, pale lilac or almost white, with a rather short yellow tube; petals 5-7 mm broad, the laminae elliptical, conspicuously purple-margined beneath, twice as long as the claw. Filaments, the shorter 1.5-3 mm, the longer 2.7-5.3 mm long, glandular-pilose on the outer edge, with long acute teeth. Ovary densely pubescent on the upper half, ecallose, the chambers 2-3-ovuled; styles densely pubescent below, glandular-pilose above. Seeds without endosperm.