Primrose family (Primulaceae)
Small perennial with long subterranean stolons. Stem narrow, reaching 10-20 cm. Lower leaves very small, arranged helically; upper large, 5-9 per whorl. Flowers white, single (rarely paired) in axils of upper leaves on long (up to 7 cm), thin pedicels. Flowers May-Jul.
Grows on mesic to moist, nutrient-poor to moderately fertile soils, in coniferous or mixed forest, or else more oligotrophic broadleaved forest. Found on the hummocks in alder forest communities or oak-sedge forest, as well as in marshy pine-birch 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.