Tundra

From Glossary of Meteorology



tundra

(Also called arctic desert.) Treeless plains that lie poleward of the tree line.

The plants thereon are sedges, mosses, lichens, and a few small shrubs. Tundra is mostly underlaid by permafrost, with the result that drainage is bad and the soil may be saturated for long periods. It does not have a permanent snow–ice cover.