Pulsatilla pratensis, (L.) Miller

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 : 220

4. P. pratensis (L.) Miller , Gard. Diet. ed. 8, no. 2 (1768)

( P. nigricans Störcke ; Anemone pratensis L. ).

Stem c. 10 cm (up to 45 cm in fruit). Basal leaves pubescent, petiolate, usually 3-pinnate; segments deeply cut into narrow lobes; lobes c. 150; cauline leaves united below, pubescent; lobes c. 30. Flowers 3-4 cm in diameter, more or less cylindrical, nodding, dark purple, reddish, pale violet, greenish-yellow or rarely white; perianth-segments recurved at apex, less than 1 | times as long as the stamens. 2« =16, 32. ® C. & E. Europe extending westwards to S.E. Norway, W. Denmark and N. Jugoslavia. Au?Bu Cz D a Ge Hu Ju N o Po Rm Rs (B, C, W, E) Su. The variation in flower-colour is correlated with distribution. Plants with dark purple flowers occur in the north, those with the flowers dirty yellow or pale greyish-violet inside occur in the south-east and those with pale violet flowers occur in the intervening area. They have been called subsp. nigricans (Störck) Zamels , subsp. hungarica Soó , and subsp. pratensis respectively.