Symphytum officinale subsp. uliginosum

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

(b) Subsp. uliginosum (A. Kerner) Nyman , Consp. 509 (1881):

Leaves, even the uppermost, not or shortly and narrowly decurrent. Stem and leaves only sparsely covered with very short, stiff setae and densely verrucose-hispid. Sepals with stiff, apical setae, otherwise more or less glabrous. • E.C. Europe. S. floribundum R. J. Shuttlew. ex Buckn. , Jour. Linn. Soc. London (Bot.) 41: 531 (1913) (5. mediterraneum F. W. Schultz, non Koch), an asperous-hispid plant with the calyx lobed to i - J, dirty white corolla with the lobes not recurved, scales with all the marginal papillae similar, about 1 | times as long as wide, the connective not projecting beyond the thecae and abortive pollen, is probably a hybrid of 1 and some other species; it was known from S. France (Var), but has not been found for 75 years.