Tagetes 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 : 144

55. Tagetes L. 3

Aromatic annual herbs. Leaves pinnatifid, glandular-punctate, mostly opposite. Capitula medium. Involucral bracts 5-10, in one row, connate nearly to apex. Receptacle flat, small, without scales. Outer florets ligulate, female; inner florets tubular, hermaphrodite. Achenes linear, 4-angled, slightly compressed, pubescent. Pappus of 5-10 membranous, often connate scales, one or more of them awned.