Aster x, Willd.

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 : 114

9. A. x versicolor Willd. , op. cit. 2045 (1803)

( A. laevis x novibelgii;? an A. novi-belgii subsp. laevigatus (Lam.) Thell. pro parte).

Stem 100-200 cm. Leaves subglaucous beneath, the middle mostly ovate, 2^-5 times as long as wide, the lowest more or less petiolate, with auriculate base. Capitula on more or less elongated peduncles with numerous uniform bracts. Involucral bracts sometimes more unequal than in 7 and with more sharply defined green apex and scarious base. Ligules violet-blue. Locally naturalized. [Au Br Cz Ga Ge He Ho Hu It Po Rm.] (Garden origin.)