A region or zone occurring above the treeline in high mountains, typically colonized by mosses, lichens, and low-growing perennial grasses, sedges, and flowering plants.
Origin
Early 20th century.
Definition of alpine tundra in US English:
alpine tundra
noun
A region or zone occurring above the treeline in high mountains, typically colonized by mosses, lichens, and low-growing perennial grasses, sedges, and flowering plants.