Phyteuma charmelii, Vili.

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 : 97-98

17. P. charmelii Vili. , Hist. Pl. Dauph. 2: 516 (1787).

Like 16 but all leaves thin, bright green; basal leaves usually absent at anthesis; cauline leaves entire to remotely serrate, with long, acute, incurved teeth; corolla curved in bud; stigmas 2. 2л = 26. Mountain rocks. • Mountains of S. W. Europe, extending eastwards to S.C. Alps', one station in S. Appennini. Ga Hs It.

P. villarsii R. Schulz , Monogr. Phyteuma 143 (1904), from rock-crevices in the mountains of S.E. France and N.W. Italy, has slender, decumbent stems and more numerous, grey-green leaves, with deeper, unequal teeth. The middle cauline leaves are truncate or shortly cuneate at base. It has 2л = 26.