Hieracium caespitosum subsp. brevipilum

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 : 373

(c) Subsp. brevipilum (Naegeli & Peter) P. D. Sell , loc. cit. (1976)

( H. pratense subsp. brevipilum Naegeli & Peter ):

Stolons usually underground, or above ground and with small leaves. Leaves slightly glaucous. Involucre rather pale; bracts with narrow pale margins and simple eglandular hairs mostly 0-5-1 mm. 2л = 18. E., E.C. & S.E. Europe.