Polygonum salsugineum, Bieb.

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

9. P. salsugineum Bieb. , Beschr. Land. Terek Kasp. 169 (1800).

Erect, bushy annual with very slender branched stems 5-20 cm. Leaves c. 3 mm, narrowly linear, almost subulate, very few. Flowers subsessile, solitary in the axils of minute scarious bracts. Perianth pink or yellowish; segments shorter than the tube. Nut long and narrow, exceeding the perianth, dull. Saline habitats. S.E. Russia and Krym. Rs (K, E).

P. samarense H. Gross , Bot. Jahrb. 49: 340 (1913) is reported as an endemic in S.E. Russia. It is like 9 in habit, but has taller stems, longer leaves (10-15 x 1-1-5 mm), distinct pedicels, perianth-tube shorter than the segments, and a glossy nut.