with . . .

bark=smooth white, black marks;  buds and twigs have white powdered, easily rubbed off   >   white poplar Populus alba

tree=very tall thin, many small branches   >   Lombardy poplar Populus nigra

tree=small, bark=light gray (darker at base);  forming colonies;  buds=shiny, against twig   >   quaking aspen Populus tremuloides
tree=small, bark=light gray (darker at base);  forming colonies;  buds=dusty gray away from twig   >   big-toothed aspen Populus grandidentata

Learn more about poplar/aspen genus Populus

Discover Life Encyclopedia of Life Google Google images Michigan Flora USDA PLANTS db USFS Wikipedia

Uses by native peoples
(Ethnobotany database)