Dryas octopetala

Dryas octopetala, the mountain avens, eightpetal mountain-avens, white dryas or white dryad, is an Arctic–alpineflowering plant in the familyRosaceae. It is a small prostrateevergreensubshrub forming large colonies. The specific epithetoctopetala derives from Greekocto 'eight' and petalon 'petal', referring to the eight petals of the flower, an unusual number in the Rosaceae, where five is the normal number. However, flowers with up to 16 petals also occur naturally.

As a floral emblem, it is the official territorial flower of the Northwest Territories and the national flower of Iceland.