What type of vegetation is not frequently found in the tundra?

a. mosses

b. shrubs

c. lichens

d. trees

The answer is d. trees.

The vegetation of the tundra is composed of shrubs, grasses, mosses, lichens. Tree vegetation is very rare because of low temperature and short growing season. In the tundra, soil is frozen, and tree growth is blocked since they cannot absorb the amount of water they need.