Serratala wolffii, Andrae

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 : 250

2. S. wolffii Andrae , Bot. Zeit. 13: 321 (1855)

( S. coronata L. pro parte).

Stems 80-150 cm, stout, erect, subglabrous. Basal leaves rather irregularly pinnatifid, the segments usually elliptic-lanceolate, sometimes pinnately lobed to subentire, the leaflets irregularly serrate with setulae on the margin and veins; cauline leaves similar, becoming reduced upwards and grading into the bracts. Capitula 25-30 mm, campanulate, up to 15 in a lax, irregular panicle. Outer involucral bracts acute, velutinous; inner bracts rather rigid, long-attenuate, sometimes slightly geniculate and hooked at apex. Florets purple. Gynodioecious. S. & C. parts of U.S.S.R., Romania. Rm Rs (C, W, E).