Achillea ptarmica, L.

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 : 162

17. A. ptarmica L. , Sp. PI. 898 (1753).

Stem 30-150 cm, single, usually branched, glabrous below, puberulent above. Leaves 3-9 x 0-4-0-8 cm, lanceolate, acute, undivided, regularly serrate, more or less glabrous, at least above, sessile, all cauline. Corymbs with (1—)3—10(—15) capitula; peduncles 10-80 mm. Involucre 8-12 mm in diameter; bracts c. 3 mm, ovate, obtuse, more or less pubescent, with a brown margin. Ligules c. 5 mm, orbicular, white. 2/7=18. Damp grassland. Europe southwards to N. Spain, N. Italy, S.W. Romania and S.C. Russia. Au Be Br Cz Da Fa Fe Ga Ge?Gr Hb He Ho Hs Hu It Ju No Po Rm Rs (N, B, C, W) Su [Is].