Senecio papposus subsp. papposus

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 : 201

(a) Subsp. papposus (inch S. procerus (Griseb.) Boiss. , non Salisb., S. bosniacus G. Beck ): Stems arachnoid-tomentose, often glabrous or glabrescent below. Basal leaves ovate-lanceolate to elliptic-oblong, subglabrous above, persistently arachnoidtomentose beneath, not fleshy. Capitula up to 15. Involucral bracts green, rarely purplish. Throughout most of the range of the species.