Are the leaves 2 1/2" to 4" long and whitish below? Hint: this often has a tree form but may be shrubby, and is native to wet areas in Logan Canyon. It is a peachleaf willow (Salix amygdaloides).
Photo by Roger Kjelgren
Are the leaves 3" to 6" long and green below? Hint: this always takes a large tree form and is not native to Logan Canyon, but is planted in several campgrounds including Guinavah-Malibu. It is a crack willow (Salix fragilis) or black willow (Salix nigra).