Hair-moss family (Polytrichaceae)
Moss forming dark green carpet. Stem of heights to 12 cm, below covered with pale rhizoids. Leaves lanceolate, sharp-tipped, of lengths to 12 mm, standing out from stem and upturned near apex. Margins distinctly toothed. Stem with sperm-producing antheridia at apex. Seta bicoloured, reddish below, yellowish above, up to 8 cm long. Capsule bluntly 4-angled. A species of moderately-fertile or nutrient-rich forests, growing in mixed/coniferous forest, open oak woodland, oak-lime-hornbeam forest, riparian and alder forests.
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.