Below that are subalpine forests of spruce, fir, and lodgepole pine. SDI of 277 for lodgepole pine and 416 for subalpine fir. Lodge poles are harvested from red juniper and the lodgepole pine. Douglas fir, Noble fir, Shasta red fir, Sugar pine, Ponderosa pine, or Lodgepole pine. Along the Oregon Coast it has been collected under lodgepole pine. The forests are dominated by lodgepole pine, whitebark pine, subalpine fir, and Engelmann spruce. Lodgepole pine is the Provincial tree of Alberta, Canada. The lodgepole pine dwarf mistletoe, "Arceuthobium americanum" disperses its seeds explosively through thermogenesis. These include&colon; black spruce, white spruce, balsam fir, larch (tamarack), lodgepole pine, and jack pine.