Primrose family (Primulaceae)
Perennial of height 0.5-1.2 m, with creeping rhizomes. Stem straight, cylindrical, with scaly leaves below and hairy branched ones above. 2-5 leaves arranged in each whorl, stalks short, elongate-ovate, sharp-pointed, with hairy underside. Length about 10 cm. Apical inflorescence is formed from many flowers. Corona yellow, with 5 segments, fused at base. Flowers Jun.-Aug.
Grows on moist and wet fertile or moderately-fertile soils. Occurs mainly in alder or riparian forests, though also met with in oak-lime-hornbeam forest, in oak-spruce forest and in moist forms of mixed/coniferous forest.
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.