Symphytum tuberosum, 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 : 104

4. S. tuberosum L. , Sp. Pl. 136 (1753) .

Rhizome creeping, with alternate thick tuberous and thin portions. Stem (10—)15— 40(-60) cm, simple or little-branched; stem and leaves more or less densely hairy; hairs up to 1-5 mm. Basal leaves (which disappear at flowering time) long-petiolate; the lower cauline leaves elliptical to lanceolate, the upper sessile, shortly and narrowly decurrent. Calyx 5-8 mm, lobed to |- ^ 0-. Corolla 13-19 mm, pale yellow; lobes with deflexed apex. Scales triangular-lanceolate; marginal papillae dense, the lower not more than l j times as long as wide, the upper very small.

Anthers 3-4-5(-5) mm; connective not projecting beyond thecae.

Woods and other damp or shady places. W., C. & S. Europe, northwards to England, C. Germany and N. Ukraine. Al Au BI Br Bu Co Cz Ga Ge?Gr He Hs Hu It Ju Po Rm Rs (C, W) Tu.