Common Haircap

Polytrichum commune is a moss species with a broad distribution across temperate and boreal regions in the Northern Hemisphere, as well as in parts of the Southern Hemisphere. It is commonly found in wetland environments such as bogs, wet heathlands, and near forest streams. The species is notable for its height, with stems often reaching over 30 cm and occasionally up to 70 cm. It is also found in disturbed habitats, including those influenced by human activity or livestock. The species was first described in 1801 and is widely recognized for its ecological adaptability.