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.
Tundra plants produce bright-colored flowers and fruits to attract insects and birds that help in pollination and seed dispersal. Some of the flowers and plants that grow in the tundra biome are the arctic lupine, the arctic poppy, arctic willow, Labrador tea, snow gentian, pasque flower, purple saxifrage, cushion plants, bearberry, diamond-leaf willow, arctic moss and caribou moss.