Populus is a genus of 25–30 species of deciduous flowering plants in the family Salicaceae, native to most of the Northern Hemisphere. English names variously applied to different species include popl
Mature trembling aspen trees (P. tremuloides) with young regeneration in foreground, Alaska
Male catkins of Populus × canadensis
The seeds of the poplar tree are easily dispersed by the wind, due to the fine hairs surrounding them.
Aspen is a common name for certain tree species in the Populus sect. Populus, of the Populus genus. Aspens were referred to as "asps" in earlier forms of English.
Quaking aspens, Populus tremuloides
Aspen seedlings in a nursery
Leaf of Populus grandidentata.
Autumn colour of Populus tremula. (leaf miner flies burrows are visible.)