Thesium alpinum, L.

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 : 71

1. T. alpinum L. , Sp. Pl. 207 (1753)

(inch T. tenuifolium Sauter ex Koch ).

Perennial. Stems 1O-2O(-3O) cm, ascending to erect, simple or slightly branched. Leaves linear to linear-oblong, 1 -veined. Inflorescence racemose, rarely paniculate; flowers often subsessile, usually more or less secund. Bract at least 2-3 times as long as flower or fruit; bracteoles equalling flower or fruit. Perianth subtubular, 4(-5)-lobed. Persistent perianth 2-3 times as long as the subglobose nut. 2« = 12. C. & S. Europe, mainly on mountains in the south; S. Sweden. Al Au Bu Co Cz Ga Ge He Hs It Ju Po Rm Rs (C, W) Su.