Ranunculus flammula subsp. flammula

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1964, Flora Europaea - Volume 1. Lycopodiaceae to Platanaceae, Cambridge University Press : 235

(a) Subsp. flammula :

Stem erect to procumbent, often rooting at nodes; internodes 4-7 cm. Basal leaves about twice as long as wide, usually cuneate or rounded at base, thin. Achenes c. 1 - 5 times as long as wide. 2« = 32. Widespread.