Oxalis orthopoda T.M.Salter

Erect, caulescent, up to 15 cm high, clothed with fine simple and pluricellular hairs. Bulb narrow-ovoid, attenuate at the base, with a long acute apical beak, in all 2-3 cm long; tunics hard, brown, glabrous, with narrow raised longitudinal ridges. Rhizome rather slender, glabrous. Stem 4-6 cm long, densely leafy almost to the base. Leaves cauline; petioles filiform, the upper 1-2.5 cm long, the lower progressively shorter and more conspicuously scale-like below the basal articulation, the lowest about 5 mm long; leaflets 3, shortly petiolulate, triangular-obcordate in outline, bilobed almost to the middle, thin, glabrous above or villose on both faces, ecallose, the lobes obovate, obtuse. Peduncles 1-fld., erect, axillary, usually arising from the lower part of the stem, 5-11 cm long, with 2 narrowly oblanceolate opposite pilose bracts, 3-5 mm long, at an articulation above the middle. Sepals lanceolate, acute or subobtuse, 4-6 mm long, ciliate, ecallose, sometimes with a narrow purple margin. Corolla 1.5-2 cm long, rosy purple or white minutely glandular-pilose, with a rather widely funnel-shaped palish yellow tube; petals cuneate, 6-7 mm broad, subtruncate at the apex, attenuate to a short somewhat oblique claw. Filaments, the shorter 3-4.5 mm, the longer 5-6.5 mm long, glandular-pilose, edentate. Ovary glabrous, the chambers 4-ovuled; styles with simple and glandular hairs admixed.