Polygonum oxyspermum, Meyer & Bunge ex Ledeb.

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 : 78

13. P. oxyspermum Meyer & Bunge ex Ledeb. , Ind. Sem. Hort. Acad. Dorpat., suppl. 2, 5 (1824).

Annual to perennial. Stems 10-100 cm, procumbent, rather stout and sometimes woody at the base. Leaves 15-30 mm, elliptical to linear-lanceolate; margins scarcely revolute. Ochreae much shorter than internodes, mostly hyaline, with 4-6 simple veins. Flowers in axillary clusters of 2-6, rarely solitary; bracts leaf-like. Nut glossy, exceeding the perianth. Sandy and gravelly sea-shores. Coasts of most of Europe, but absent from the E. Mediterranean. Br Bu Da Fe Ga Ge Hb It No Po Rm Rs (N, B, W, K) Sa Su Tu.