Evergreen forest that covers much of Canada (5)
I believe the answer is:
taiga
(Other definitions for taiga that I've seen before include "Forested northern land" , "trees" , "Marshy pine forest" , "tree-covered region" , "Boggy forest" .)
I believe the answer is:
taiga
(Other definitions for taiga that I've seen before include "Forested northern land" , "trees" , "Marshy pine forest" , "tree-covered region" , "Boggy forest" .)