Salix polaris, the polar willow, is a species of willow with a circumpolar distribution in the high arctic tundra, extending north to the limits of land, and south of the Arctic in the mountains of Norway, the northern Ural Mountains, the northern Altay Mountains, Kamchatka, and British Columbia, Canada.
One of the smallest willows in the world, it is a prostrate, creeping dwarf shrub, only 2–9 cm (0.79–3.54 in) high, and has underground branches or runners in the uppermost soil layers. The leaves ...
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