Cotton Grass Eriophorum angustifolium

Common cottongrass (Eriophorum angustifolium) is a plant from the sedge family (Cyperaceae), thus even though it looks like a form of grass technically it is not. It grows in acidic wetlands and peat bogs all over northern parts of Europe, Asia and North America. The flowering stem is 20-70 cm tall, and has three to five cotton-like inflorescenses hanging from the top. It is also sometimes referred to as multi-headed bog cotton. The presence of cottongrass is a useful indicator to hikers of potentially dangerous deep peat bogs to be avoided. (source: Wikipedia)