Perennial with a thick creeping rhizome and arched, angled stem growing 15-65 cm tall. Leaves arranged helically, but also alternating either side of the stem, lanceolate to elliptic in shape, entire, sessile, and with distinct veins. Flowers hanging, singly or in pairs on pedicels emerging from the axils of the leaves. Perianth white, cylindrical, 12-30 mm in length, narrowed at the base and with greenish 5-mm lobes at the open end. Blue-black fruit a spherical berry of 8-12 mm diameter. Flowers May-Jun.
Grows on dry and mesic, not too fertile soils in mixed/coniferous, oak or mesic mixed/pine forests. Simultaneous POISONOUS and with medicinal applications.
Descriptions devised by the team at the Independent Department of Forest Botany, Warsaw University of Life Sciences, i.e. L. Witkowska-Żuk, K. Marciszewska, W. Ciurzycki, A. Obidziński and P. Zaniewski