Hieracium hoppeanum subsp. hoppeanum

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 : 367

(a) Subsp. hoppeanum :

Leaves without stellate hairs above. Involucral bracts (8—)11—14 x 2-4 mm, more or less ovate, in the central part with numerous long simple eglandular hairs which are dark at least in their basal half, without or with few glandular hairs; margins pale, without hairs. • Alps.