Trollius europaeus, L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 210

1. T. europaeus L. , Sp. Pl. 556 (1753) .

Plant 10-70 cm, glabrous. Basal leaves long-petiolate, 3-5 lobed; lobes cuneate and more or less deeply lobed and serrate; cauline leaves smaller and more or less sessile. Flowers up to 5 cm in diameter, globular. Perianth-segments commonly 10, lemon-yellow, rarely the outer green beneath, incurved. Honey-leaves about as long as the stamens. Follicles c. 12 mm; beak 0-5-5 mm. Widespread in Europe, but only on mountains in the south. Al Au Be Br Cz D a Fe G a Ge Hb He H u It Ju N o Po Rm Rs (N, B, C, W, E) Su.

The length of the beak of the mature follicle and the shape of the basal leaves is rather variable, especially in E. Europe. The prevalence of self-pollination probably helps to emphasize this variation. Two subspp. can be recognized: