Verbascum thapsus, L.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 211

34. V. thapsus L. , Sp. Pl. 177 (1753)

(inch V. simplex Hoffmanns. & Link ).

Biennial, more or less densely greyish- or whitish-tomentose; stem 30-200 cm. Basal leaves 8-50x2-5- 14 cm, elliptic- to obovate-oblong, obtuse, entire or finely crenate; upper cauline leaves decurrent. Inflorescence usually simple. Bracts 12-18 mm, ovate to lanceolate, acuminate; pedicels partly adnate to stem. Calyx (5-)8-12m m; lobes lanceolate. Corolla 12-35 mm in diameter. Stamens 5, the upper with villous filaments, the lower with glabrous to villous filaments and decurrent anthers; filament-hairs white. Stigma capitate. Capsule 7-10 mm, elliptic-ovoid. 2« = 32, 36. M ost o f Europe except the extreme north and much o f the Balkan peninsula. Au Az Be BI Br Co Cz Da Fe Ga Ge Hb He Ho Hs Hu It Ju Lu No Po Rm Rs (N, B, C, W, K, E) Sa Si Su. 1 Filaments of lower stamens glabrous or sparsely hairy (a) subsp. thapsus

1 Filaments of lower stamens densely villous 2 Plant variably tomentose, but not white; lower cauline leaves scarcely decurrent (b) subsp. crassifolium

2 Plant densely white-tomentose; lower cauline leaves longdecurrent (c) subsp. giganteum