Trees of Wisconsin

Key to the Trees of Wisconsin

95. Leaf blades rounded at the base, ovate or roundish and finely toothed; buds not sticky; twigs of the current year medium to dark brown.	Populus tremuloides
95. Leaf blades nearly straight across at the base, resulting in a broadly triangular or "deltoid" shape, coarsely toothed; buds often sticky; twigs of the current year yellowish-green.	Populus deltoides