Tundra is not necessarily frozen. Tundra is a landscape type characterized by specific plant and animal communities and climatic influences. Tundras are frequently frozen, and for long periods, long winters being a defining characteristic, but tundra also typically experiences brief summer seasons without snow or ice, during which time the plants, which rarely rise above the rocks, rush through rapid bloom and seed cycles, before another long winter blasts in. The alpine tundra on mountaintops in Colorado and New Mexico, for instance, has many beautiful summer flowers on the slopes above the tree line. I assume the arctic tundra is much the same, though I have not seen it my self.
pleonasm: 1. the use of more words than are necessary to express an idea; redundancy. 2. an instance of this, as free gift or true fact. 3. a redundant word or expression.
