Petasites radiatus, (J. F. Gmelin) J. Toman

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1976, Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge University Press : 187-188

5. P. radiatus (J. F. Gmelin) J. Toman , Folia Geobot. Phytotax. (Praha) 7: 388 (1972)

(P. laevigatus Reichenb., Nardosmia laevigata (Reichenb.) DC. ).

Leaves triangular-hastate to reni­ formi basal lobes divergent; margin regularly toothed; lamina glabrous. Scapes with 4—5(—8) scale-leaves, the lowest completely sheathing the stem at the base, rarely with a rudimentary lamina, the middle 2-5-4(-7) cm. Capitula c. 5 in the male, c. 10 in the female. Involucre 5-5-6 mm; bracts purplish or green, glabrous, with a minutely ciliate or shortly fimbriate apex. Florets yellowish or pinkish. Ligules in the male 2-8-4 mm, in the female c. 1 -5 mm. Stigma of male florets c. 1 -3 mm. Wet river-gravels. N. & E. Russia, southwards to 52° N. in S. Ural. Rs (N, C).