Populus grandidentata (Big-toothed Aspen)
Native: Eastern North America
Leaves look similar to the American Aspen (Populus tremuloides) but are more deeply toothed.
Open in March, males red with grey silky hairs about 5cm long, females greenish also about 5cm long.
No sample available
Fruit catkins are about 1.5cm with two-valved capsules and ripen in May or June.