Senecio incanus subsp. incanus

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 : 194

(a) Subsp. incanus :

Lamina of basal leaves more or less broadly ovate in outline. Achenes hairy, at least above. 2n = 40. S. W. & S. C. Alps', N. Appennini.