Related to demarcation: demarcation line, Demarcation point, Demarcation problem See: boundary, definition, differentiation, discrimination, limitation, outline, periphery, restriction, severance Want to thank TFD for its existence?
Alpine plants are plants that grow in an alpine climate, which occurs at high elevation and above the tree line. Alpine plants grow together as a plant community in alpine tundra. Alpine plants are not a single taxon. Rather, many different plant species live in the alpine environment. These include perennial grasses, sedges, forbs, cushion plants, mosses, and lichens. Alpine plants must adapt to the harsh conditions of the alpine environment, which include low temperatures, dryness, ultraviolet radiation, and a short growing season. Some alpine plants serve as medicinal plants.
There are two types of tundra, the arctic and the alpine tundra. The arctic tundra is the land around the North Pole. The alpine tundra can be found above the tree line of tall, cold mountains.Tundra covers one fifth of the Earth's surface.ome plants that grow in the tundra include lichen, short shrubs, sedges, grasses, flowers, birch trees and willow trees. Cushion plants, which, also grow in the tundra, are types of plants that grow low to the ground in tight places. They are called cushion plants because they are soft and cushiony.