boreal
adjective
[ ˈbɔːrɪəl ]
• of the north or northern regions.
• relating to or characteristic of the climatic zone south of the Arctic, especially the cold temperate region dominated by taiga and forests of birch, poplar, and conifers.
• "northern boreal forest"
• relating to or denoting the second climatic stage of the postglacial period in northern Europe, between the Preboreal and Atlantic stages (about 9,000 to 7,500 years ago), marked by a warm, dry climate.
Origin:
late Middle English: from late Latin borealis, from Latin Boreas, denoting the god of the north wind, from Greek.