Populus sect. Aigeiros - Wikipedia
Populus section Aigeiros is a section of three species in the genus Populus, the poplars.Like some other species in the genus Populus, they are commonly known as cottonwoods.The species are native to North America, Europe, and western Asia. In the past, as many as six species were recognized, but recent trends have been to accept just three species, treating the others as subspecies of P ...
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