Oxalis pes-caprae, L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 193

10. O. pes-caprae L. , Sp. Pl. 434 (1753)

( O. cernua Thunb. ).

Sparsely pubescent, caespitose perennial, with a deeply-buried bulb, which emits an annual, ascending, subterranean stem bearing bulbils and a rosette of leaves at soil level. Petioles up to 20 cm; leaflets 8-20 x 12-30 mm, obcordate, deeply emarginate. Flowers infundibuliform (sometimes flore pleno), in umbellate cymes; petals 20-25 mm, yellow. Capsule short, rarely formed. Cultivated ground and other open habitats. Extensively naturalized in the Mediterranean region and W. Europe. [BI Br Co Cr Ga G r Hs It Lu Sa Si.] (South Africa.)