• WordNet 3.6
    • adj subalpine growing at high altitudes
    • ***
Webster's Revised Unabridged Dictionary
    • a Subalpine (Bot. & Zoöl) Inhabiting the somewhat high slopes and summits of mountains, but considerably below the snow line.
    • ***
Century Dictionary and Cyclopedia
    • subalpine Living or growing on mountains at an elevation next below the height called alpine.
    • subalpine Lower Alpine: applied to that part or zone of the Alps which lies between the so-called “highland” zone and the “Alpine” zone proper. It extends between the elevations of 4,000 and 5,500 feet approximately, and is especially characterized by the presence of coniferous trees, chiefly firs, which cover a large part of its surface. Large timber-trees rarely reach much above its upper border. Below the subalpine zone is the highland or mountain zone, the region of deciduous trees, and above it the Alpine, which, as this term is generally used, embraces the region extending between the upper limit of trees and the first appearance of permanent snow. Still higher up is the glacial region, comprehending all that part of the Alps which rises above the limit of perpetual snow. The terms alpine and subalpine are sometimes applied to other mountain-chains than the Alps, with signification more or less vaguely accordant with their application to that chain.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Subalpine sub-al′pīn belonging to a mountainous region next below alpine—i.e. near but not below the timber-line, alpestrine.
    • ***


Webster's Revised Unabridged Dictionary
L. subalpinus,


In literature:

In the subalpine forest the annual growth is very small.
"The Forests of Mount Rainier National Park" by Grenville F. Allen

In news:

Golden-crowned sparrows pass through here on their migrations, and a few are known to nest in our subalpine zones, where one can sometimes hear their sweet little song.
Subalpine Sunset, Mt Rainier Nat.
Subalpine Sunset, Mt Rainier National Park.
Hiking in the subalpine zone in the Mt Rainier National Park last Saturday 8/4, Naches Peak Loop Trail, with the most gorgeous views of Mt Rainier.