"Area below timberline" refers to the region beneath the point on a mountain where trees no longer grow due to the low temperature and harsh environmental conditions. There are several alternatives for this phrase, including subalpine zone, timberless zone, and montane meadow. The subalpine zone encompasses the area just below the timberline, where fewer trees and more shrubs can be found. The timberless zone specifies the region where trees do not grow at all and likely only small vegetation can survive. Finally, the montane meadow refers to the open grassland and meadow areas that are often intermixed with treeline habitats. These synonyms can be used interchangeably, depending on the context of the discussion.