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.
Alpine tundra is broadly defined as the zone of low-growing herbaceous or shrubby plants found above the tree line (the uppermost elevation where trees occur). This definition is inadequate for the Great Basin, where subalpine forest is not always present to form a tree line.A more apt definition of alpine tundra in Nevada is the zone above the upper limit of sagebrush-dominated shrublands.his definition is inadequate for the Great Basin, where subalpine forest is not always present to form a tree line. A more apt definition of alpine tundra in Nevada is the zone above the upper limit of sagebrush-dominated shrublands.