Hieracium caesium

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 : 378

74. H. caesium group. Like 71 but leaves more or less glaucous, the cauline 2-4; capitula 1-10; simple eglandular hairs of involucre often dark at base. In = 27, 36. Europe, southwards to N. Italy and S. Romania. Au Br Cz Da Fa Fe Ga Ge Hb He Hu Is It No Po Rm Rs (N, B, C, W) Su. -

Included species:

H. caesiomurorum Lindeb. , Hier. Scand. Exsicc. 2: 59 (1872). 2n = 36. Br Da Fe Ga It No Rs (C) Su.

H. caesium (Fries) Fries , Nova Acta Reg. Soc. Sci. Upsal. 14: 112 (1848). Au Cz Da Fe Ga Ju No Rm Rs (N, B, C, W) Su.

H. galbanum Dahlst. ex N. J. Andersson , Bot. Not. 1890: 92 (1890). Au Cz Fe Ge Hu No Rs (N, B, C, W) Su.

H. holopleuroides Dahlst. , Bot. Tidsskr. 20: 353 (1896). • Is.

H. orcadense W. R. Linton , Jour. Bot. (London) 31: 196 (1893) ( H. euprepes F. J. Hanb. , non Peter). • Br Fa Hb.

H. subramosum Lönnr. , Öfvers. Kongl. Vet.-Akad. Förhandl. 39(4): 86 (1882). • Br Da No Su.