Petasites frigidus, (L.) Fries

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 : 188

7. P. frigidus (L.) Fries , Summa Veg. Scand. 182 (1846)

( Nardosmia frigida (L.) Hooker , N. anguiosa Cass. ).

Leaves triangular-cordate, glabrous above, hairy beneath; basal lobes divergent, with 1-2 lateral veins bordering the sinus; margin coarsely dentate or lobed; apices of teeth (8-) 10-20 mm apart. Scapes with 4-11 scale-leaves, the lower usually sheathing at the base, the middle in the male 3 - 1-6-2 cm, in the female 2-5-4- 8 cm, usually fewer than half with a rudimentary lamina. Capitula 5-9 in the male, 8-12 in the female. Involucre 6-9 mm; bracts purplish or green, pubescent. Florets whitish-yellow or reddish. Ligules in the male 3-5-5 mm, in the female 2-2-5 mm. Stigma of male florets 1-1-8 mm. 2и = 60. Stream-sides, bogs and other wet places. N. Europe, southwards to S. Norway and C. Ural. Fe No Rs (N, C) Sb Su.