Arctic cotton

Eriophorum callitrix, commonly known as Arctic cotton or Arctic cottongrass, is a perennial Arctic plant in the sedge family, Cyperaceae. It is one of the most widespread flowering plants in the northern hemisphere and tundra regions. Upon every stem grows a single round, white and wooly fruit. The seeds are covered in this cottony mass and usually disperse when the wind carries them away.

Main Photo Credit: 
"Arctic Cotton (Eriophorum callitrix var. moravium), Nunavut, Canada" by Snpwong, 2019. CC BY-NC 2.0.

Description: Wikipedia