Viola calcarata, 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 : 277

48. V. calcarata L. , Sp. Pl. 935 (1753).

Low-growing perennial; stems up to 5 cm. Leaves 1-4 cm, rosulate, orbicular, ovate to lanceolate, crenate, glabrous or slightly hairy on the margins; petiole equalling or exceeding lamina. Stipules 0-5-1-5 cm, oblong, entire or dentate or the upper sometimes pinnatifid. Peduncles 3-9 cm, 1-4 per stem. Flowers 2-4 cm long and up to 3 cm wide, violet or yellow. Petals very wide, the lateral and upper often wider than the lower. Spur 8-15 mm, about equalling the petals, straight or slightly curved upwards. Meadows, pastures and screes, mostly above 1500 m. • Alps and S. Jura; W. part of Balkan peninsula. Al Au Ga Ge?Gr He It Ju.