Viola occulta, Lehm.

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 : 281

87. V. occulta Lehm. , Ind. Sem. Horti Bot. Hamburg. (1829).

Annual. Stems 3-15 cm, erect. Leaves 2-3 cm, narrowly oblongspathulate, remotely crenate-serrate or almost entire, glabrous to pubescent; the lower petiolate, the upper sessile. Upper stipules deeply and pinnately divided, with the terminal segment the largest, entire. Bracts of peduncle concealed by the calycine appendages. Sepals c. 1 cm, broadly lanceolate, as long as or longer than the corolla; appendages large, exceeding the spur. Flowers 1-1-5 cm, white to cream. Petals sometimes with bluish margins. Ruderal. Krym. [Rs (K).] (C. & S.W. Asia.)