Petasites kablikianus, Tausch ex Berchtold

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

4. P. kablikianus Tausch ex Berchtold , Lotos 1: 120 (1851)

( P. glabratus (J. Maly) Borbas ).

Leaves orbicular to triangularcordate, somewhat angular in outline, glabrous beneath, except on the veins; basal lobes usually convergent, with 3-5 lateral veins bordering the sinus; margin regularly to irregularly toothed; apices of teeth 2-6(-10)mm apart. Scapes with 4-16 scaleleaves, the lower almost sheathing at the base, the middle 2-2-5-5 cm, fewer than half with a rudimentary lamina. Capitula 5-22 in the male, 18-33 in the female. Involucre of male 6-10 mm, of female 6-7-5 mm; bracts pale green, with a usually entire apex, minutely hairy, with glandular hairs with heads 3 times as wide as their stalks. Florets white or pale yellow, all tubular; corollalobes 1-2 mm. Stigma of male florets 1 -7-3 mm, divided for more than half its length. 2л = 60. Wet gravel, stream-banks and wooded gorges. • Sudeten Mts; Carpathians', N. & C. parts of Balkan peninsula. Al Bu Cz Ju Po Rm Rs (W)-

The hybrid 1 x 3 is often confused with this species, but has the leaves tomentose beneath, with 1-2 lateral veins bordering the sinus, purplish florets and corolla-lobes 2-4 mm.