Epilobium hornemannii, Reichenb.

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 311

21. E. hornemannii Reichenb. , Pl. Crit. 2: 73 (1824).

Stolons hypogeal, short; stems 6-25 cm, with slightly elevated pubescent lines. Leaves 2-4 x 1-1-5 cm, ovate-elliptical, weakly serrulate; petiole 2-8 mm. Inflorescence glabrescent. Petals 4-6 mm, pale violet. Seeds c. 1 mm, fusiform, finely papillose, with a pellucid appendage. 2« = 36. Wet places. Arctic and subarctic Europe. Fe Is No Rs (N) Su.

E. uralense Rupr. in E. Hofmann, Nördl. Ural 2 (77. Bor.- Ural.): 33 (1856) described from N. Ural, is doubtfully distinct. It is said to be more glaucous, with leafy stolons and seeds c. 1 -2 mm.