Eriophorum scheuchzeri; Scheuchzer's cottongrass is a sedge of marshy area's. It can also be found often along roadsides in ditches. The conspicuous silvery-white hairs surrounding the flowers in the spikes make members of the Eriophorum species quite easily recognizable. Bear in mind though that they only appear when fruits start to develop and are small (invisible from a distant) during initial blossoming. Another common cotongrass on Iceland is E. angustifolium: common cottongrass. The species can easily be recognized: E. scheuchzeri has only 1 spike on 1 stem while E. angustifolium has many spikes on the individual stems.
It is a member of the sedge family Cyperaceae. The Icelandic name of this species is Hrafnafífa.