Study on cold resistance of Pinus sibirica

Pinus sibirica is a member of the white pine group, Pinus subgenus Strobus, and like all members of that group, the leaves ('needles') are in fascicles (bundles) of five, with a deciduous sheath. They are 5-10 cm long. Siberian pine cones are 5-9 cm long. The 9-12 mm long seeds have only a vestigial wing and are dispersed by spotted nutcrackers.