Pterocephalus perennis, Coulter

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 : 68

6. P. perennis Coulter , op. cit. 33 (1823).

Procumbent, rather woody, caespitose perennial up to 12 cm. Leaves 2-5 x0-5-T5 cm, lyrate or undivided, oblong-spathulate, crenate or dentate; terminal lobe ovate or ovate-oblong, crenate; lateral lobes small, linear. Involucral bracts 8-15 mm, lanceolate, shorter than florets. Corolla 12-20 mm, pink, or pale purplish. Capitulum with outer florets radiate. Involucel 3-4 mm in fruit, densely sericeous, with a corona of short plumose setae c. 2 mm. Calyx 12-14 mm, with 13-16 setae free almost to base. Mountain rocks. • Greece and Albania. Al Gr.