Oxalis duriuscula Schltr.

Erect, slender, up to 22 cm high, with a long exserted stem. Bulb: tunics acutely pointed and recurved at the apex, pale reddish brown, rather densely pubescent. Rhizome long, pubescent. Stem slender, wiry, brown, up to 19 cm long, rarely bifurcate, glabrous, with 2 acute scales. Leaves usually 2-5, terminally congested; petioles filiform, 1.5-3 cm long, glabrous; leaflets 3, linear, tapering at the apex, entire, conduplicate, 1-2.4 cm long, 2 mm broad, entirely glabrous or very sparsely pubescent beneath, copiously punctate with small reddish calli. Peduncles 1-fld., terminal, filiform, 2-3 cm long, glabrous, with 2 subulate opposite bracts at an articulation on the upper half. Sepals narrow-ovate or lanceolate, acute, 4-5 mm long, usually purple-margined, with 2-4 elongate reddish apical calli. Corolla up to 1.5 cm long, glandular, rosy purple, with a funnel-shaped yellow tube; laminae of the petals obliquely obovate, obliquely truncate, rather longer than the narrow-cuneate claw, with a narrow purple outer margin beneath. Filaments, the longer 3-4.5 mm long, thinly pubescent, gibbose; anthers 0.4 mm long. Ovary glabrous or sparsely pubescent on the upper half, with conspicuous elongate red calli; the chambers 1-ovuled; styles pubescent. Capsule shorter than the calyx. Seeds endospermous.