Galium verum subsp. verum

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 : 22

(a) Subsp. verum :

Stems erect to ascending; internodes longer or shorter than the leaves. Leaves 15-30(-35)x0*5-l(-2) mm; margin recurved to midrib. Branches of inflorescence longer than the corresponding internodes; inflorescence not interrupted. Corolla golden-yellow; flowers fragrant. 2« = 22, 44. Throughout the range of the species.