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.
Most plants in the Tundra are lichen,mosses,and some other low shrubs or trees like the Dwarf Willow or some other birches that are less then knee-high. From the lack of lots of vegetation, some herbivores in the Tundra have a hard time finding areas with a abundance of plants to eat during the Winter.