A closely-related European aspen, the common aspen was part of a recent study (Marchand et al. “No winter halt in below-ground wood growth of four angiosperm deciduous tree species” Nature ...

along with its very similar sister species of European and Asian distribution — the Eurasian aspen (Populus tremula) — these two species occupy the broadest range of any tree species in the world.

those trees where the wood has been weakened by the aspen bracket fungus. Another species that takes advantage of aspen’s soft wood is the European beaver (Castor fiber), recently restored to ...