Also called large-toothed aspen, American aspen, white poplar and more.
Part of
aspen/cottonwood/poplar genus Populus
in
willow family Salicaceae.
Native to 🇨🇦 Canada and 🇺🇸 USA, east of the 🗻︎ Rocky Mountains.
And according to the 🇺🇸 NRCS link below, 🇨🇦 British Columbia.
🗺 Map by county (🇺🇸 USA-48),
🗺 map (North America, Central America), 
🗺 today + with climate change (eastern 🇺🇸 USA).
Uses by native peoples
(Ethnobotany database)
Populus hosts caterpillars of 367 species
of butterflies and moths, in some areas.
This plant is also known to be a host for (in areas where invasive)
🐝︎ spotted lanternfly (SLF) Lycorma delicatula.
Often grows in clonal colonies
[1]
—look around for other stems!
Aspen is well-adapted to 🔥︎ fire—after a fire, it produces new trunks from the its roots or trunk base. Aspen often grows with
jack pine Pinus banksiana
—after a fire, both grow fast and eventually would get shaded out by
spruce genus Picea
and
fir genus Abies,
until again invigorated by the next cycle of fire.
Propagation protocol.