Largetooth aspens hoist a straight, slender trunk, most of it branchless, topped by a narrow, rounded crown.
Adverse to early or late frosts, largetooth aspens keep mainly south of the boreal forest, from southeastern Manitoba to the Maritimes. They thrive on sandy ground, especially near forest edges.
In October, this tree outshines the more ubiquitous but sombre yellows of trembling aspen, with its bigger, jagged-edged leaves turning a bright golden yellow or orange, sometimes tinged with red.
Even after the largetooth aspen’s leaves fall, its smooth, thin, greenish-grey to yellowish bark can photosynthesize on mild days. After a few decades, the lower trunk develops rough, dark furrows.
Though they release silky, wind-borne seeds from dangling catkins in late spring, most aspens emerge from fast-rising root suckers. Football field-sized swathes of…