Convolvulus althaeoides subsp. althaeoides

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 82

(a) Subsp. althaeoides :

Relatively robust, with sparse to dense, mostly patent hairs; leaf-lobes relatively wide and shallow; sepals (7)8-9(10) mm. Throughout most o f the range o f the species, but rarer in the east.