Asteriscus Miller

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 : 139

39. Asteriscus Miller 1

Like Pallenis but sometimes perennial; inner florets with a terete tube; outer achenes more or less triquetrous or somewhat compressed, the remainder terete.

Perennial; ligules as long as involucral bracts 2. maritimus Annual ; ligules much shorter than involucral bracts 1. aquaticus