Oxalis annae F.Bolus

Dwarf, weak, stemless, entirely glabrous or villose with whitish hairs, 2-6 cm high. Bulb elongate, acute at the apex or lanceolate in outline, contorted, usually 2-3 cm long, with a long beak, the older often persisting on the rhizome, the splitting tunics of the upper imbricating the lower through the action of the contractile root. Rhizome short, pale. Leaves from few to very numerous; petioles usually 1-3 cm long, broadly dilated and submembraneous below the basal articulation; leaflets 3, polymorphic, the medial rotund, widely obcordate, cuneate-obcordate or cuneate-sub-bilobed, the lateral obliquely obovate, oblong-obovate or oblong-cuneate, usually entire, 1-5 mm long, glabrous or sparsely cano-villose on both faces, impresso-punctate when dried. Peduncles 1-fld., 0.5-8 cm long, shorter or much longer than the leaves, with 2 alternate subulate pale bracts on the upper part. Sepals narrow-obovate, broadly lanceolate or oblong-lanceolate, acute or obtuse, 3-5 mm long. Corolla often 1.3-2 cm long, copper-pink, white or yellow, with a very broadly funnel-shaped yellow tube; laminae of the petals broadly cuneate, obliquely truncate, 3 times as long as the claw, sometimes purple-maculate and cano-pubescent on the outer margin. Filaments, the shorter 2-4 mm, the longer 3.5-7 mm long, more or less minutely glandular-pilose, edentate, the longest well exserted from the corolla tube. Ovary glabrous or pubescent on the upper half, the chambers many-ovuled; styles minutely glandular-pilose on the upper half. Seeds endospermous. Form A. Corolla copper-pink. Form B. Corolla white. Form C. Corolla yellow.

It is a subtropical plant.