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: (1) arctic tundra is found in the Arctic Circle where the North Pole is located and in the Antarctic Circle where the South Pole is located; (2) the alpine tundra is found on mountain ranges where trees can no longer grow (termed timberline).here are two types of tundra: (1) arctic tundra is found in the Arctic Circle where the North Pole is located and in the Antarctic Circle where the South Pole is located; (2) the alpine tundra is found on mountain ranges where trees can no longer grow (termed timberline).