Anthemis

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 : 153

Sect. Anthemis (Ser. Arvenses Fedorov ). Annual or biennial with much-branched stems. Peduncles sometimes davate in fruit. Inner involucral bracts with hyaline or sometimes brownishscarious margin and apex. Receptacle conical or sometimes hemispherical; receptacular scales subpersistent, ending in a short and slightly rigid point. Ligules white, rarely yellow, pink or absent. Achenes with smooth, granulate or rarely tuberculate ribs.