Common Cotton Grass, Eriophorum angustifolium, is found in the northern regions of North America, Europe, and Asia. The fluffy white seedheads cannot be used to make clothing like cotton, but it has been used in wound dressings (padding) and as pillow stuffing. This species of cotton grass has translucent pink roots that have been used as an astringent and to treat digestive troubles.

cotton grass Eriophorum angustifolium species plant alpine mountains bog northern

Encyclopedia of Life: pics!
Wikipedia (very informative article)
Nature’s Notebook
Other types of cotton grass

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