Gaillardia Foug.

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

54. Gaillardia Foug. 3

Annuals or short-lived perennials. Leaves entire or pinnatifid, alternate. Capitula large. Involucral bracts in 2-3 rows. Receptacle convex-subglobose, with numerous scales or setae. Outer

florets ligulate, usually female; inner florets tubular, hermaphrodite. Achenes obovoid, usually covered by a basal tuft of long hairs. Pappus of 5-10 long-awned scales.

Literature: S. F. Biddulph, Res. Stud. State Coll. Washington 12: 195-256 (1944).