Pulmonaria obscura, Dumort.

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 : 100-101

1. P. obscura Dumort. , Bull. Soc. Bot. Belg. 4: 341 (1865)

(P. officinalis subsp. obscura (Dumort.) Murb. ).

Lamina of summer leaves up to 16 x 8 cm, cordate, unspotted or with faint, green spots; upper surface very rough, with scattered, unequal setae, occasional glandular hairs, and dense, small aculeoli; petiole up to 25 cm x 3 mm. Inflorescence with setae, glandular hairs and short hairs. Corolla reddish- to bluish-violet; corollatube glabrous inside below the ring of hairs. Nutlets up to

4 x 3 mm. 2« = 14. From Belgium, E.C. Sweden and N. Russia southwards to S.E. France, Bulgaria and Krym. Au Be Bu Cz Da Fe Ga Ge He Hu Ju Po Rm Rs (N, B, C, W, K, E) Su [Br].