Leontodon carpetanus subsp. carpetanus

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 : 312

(a) Subsp. carpetanus (L. pyrenaicus subsp. reverchonii Freyn ): Involucre 10—14 mm. Ligules yellow, the outer with a bluish stripe on outer face. Throughout most ofthe range of the species.