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Cottongrass (Eriophorum vaginatum)
Cottongrass growing in an alpine meadow in Iceland
Cavan Images / Getty Images
A common plant of the tundra biome, cotton grass is a herbaceous perennial with slender skinny leaves that look like grass. The stems grow anywhere from eight to 28 inches tall with three to five fluffy clusters of seeds on the top of each stem—these heads help carry the seeds through the wind for dispersal.
The dense cottonlike hairs also keep the plants protected and help them survive for longer periods of time. An important plant in Inuit culture, the grass was once used as wicks for lamps or candles made by drying out the grass and mixing it with seal fat or caribou fat.