Rumex ucranicus, Besser ex Sprengel

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 : 88

49. R. ucranicus Besser ex Sprengel , Novi Provent. 36 (1819).

Slender, purplish annual 8-15 cm, branched from the base. Basal leaves small, obovate. Cauline leaves linear-lanceolate, 3-4 times as long as wide; margin often undulate; petiole longer than width of lamina. Petiole of leaves of inflorescence longer than the diameter of the whorl it subtends. Valves 2(-2-5) x 1 mm (excluding teeth), narrowly triangular, very acute, each with a large orange tubercle; teeth c. 3 on each side, at least as long as the width of the valve. 2/z = 40. Riversides. U.S.S.R.,from c. 57° N. southwards, extending to E. Poland and N.E. Romania. Po Rm Rs (B, C, W, E).