Plagius L’Hér. ex DC.

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 : 177

82. Plagius L’Hér. ex DC. 1

Somewhat woody perennials. Leaves simple, alternate. Capitula in terminal corymbs of 4-10. Involucral bracts in 2-3 rows, keeled on the back. Receptacle convex. All florets hermaphrodite, tubular, obconical, yellow; corolla-tube unwinged. Achenes all similar, obconical, ribbed, with a thick basal callus and a distinct epigynous disc; epicarpic mucilaginous cells and vallecular secretory canals present. Pappus an auricle, more developed on the adaxial side.