1) Growing at high altitudes 2) Growing in high woodlands 3) Subalpine 4) Upland 1) Highland 2) Subalpine 3) Upland 
of, like or pertaining to alpine regions
• (a.) Pertaining to the Alps, or other high mountains; as, Alpestrine diseases, etc. • (a.) Growing on the elevated parts of mountains, but not above the timbe/ line; subalpine.
Al·pes'trine adjective [ Latin Alpestris .] Pertaining to the Alps, or other high mountains; as, Alpestrine diseases, etc. 
[adj] - growing at high altitudes
alpestrine Growing at high altitudes; alpine or subalpine.
subalpine adjective growing at high altitudes
subalpine (def. 2).