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Pinus contorta latifolia (Lodgepole Pines), are everywhere in British Columbia and Western N. America. They provide the forest industry with most of the logs used in sustainable logging operations. And their natural regeneration is brought about by periodic, seasonal fire.

“. . . some forest plants lay dormant under typical or ‘normal’ forest conditions; lying in wait to germinate or disperse after a fire provides an open canopy and abundant light. Seed banks stored in the soil (snowbrush) or forest canopy (lodgepole pine) provide ample seed for regeneration. . . ” [Dr. Dan Binkley, professor in Colorado State University’s Department of Ecosystem Science and Sustainability]

It’s all about the cones. Under normal conditions the Lodgepole Pine’s pine cones are sealed shut, but fire melts the natural sealant and opens the cones, releasing the seeds.