The forest is primary composed of poplar, hemlock, oak, maple, white pine, and balsam fir. The smell has been compared to that of the balsam fir tree. Trees most at risk are those growing with balsam fir and white spruce. Aspen, birch, pine, balsam fir, and maple blanket the forest. Coniferous trees such as black spruce, white spruce, and balsam fir dominate the native vegetation. May warbler, which is therefore closely associated with its host plant, balsam fir. The summit is covered with red oak, red spruce, and balsam fir trees. Some botanists regard the variety of Balsam fir named "Abies balsamea" var. The region is widely forested with white and black spruce, balsam fir and jack pine. A Fraser fir or Balsam fir is erected in the rotunda and decorated. An outbreak in Quebec in 1957 killed over 75% of balsam fir in some stands. Balsam fir oil is an EPA approved nontoxic rodent repellent. Balsam fir is the provincial tree of New Brunswick. These include jack pine, balsam fir, black spruce, white birch, and poplar. These include&colon; black spruce, white spruce, balsam fir, larch (tamarack), lodgepole pine, and jack pine.