Erigeron silenifolius, (Turcz. ex DC.) Botsch.

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 : 120

17. E. silenifolius (Turcz. ex DC.) Botsch. , Not. Syst. (Leningrad) 16: 392 (1954).

Robust perennial up to 15(-25) cm. Whole plant usually with long eglandular and short glandular hairs, rarely glabrous below. Basal leaves not more than 6(—12) x 0-3 (-0-9) cm, linear-oblanceolate, with a long-attenuate petiole. Flowering stems stiffly erect; cauline leaves 3-11. Capitula 2-3(-3-5) cm wide, solitary. Involucral bracts linear-lanceolate, lilac distally, sometimes uniformly purplish. Florets dimorphic; ligules 7—13 x 0-9-1 -7(-2-7) mm, with 2 or 3 small teeth at the apex, white or lilac. N. Ural (basin of Kožim river). Rs (N). (E. Siberia.)

The European station is separated from the main area of the species by more than 1500 km.