The leaves of Populus deltoides are thin leathery, usually spoon shaped, but also obovate or narrowly ovate, the widest above the middle, growing up to 2-4cm, about 8-18mm wide. The leaf surface is green, brighter, and the back is gray.
The leaves are leathery, oblong, obovate, oval or oval, about 1.5-3.5cm long and 0.8-2cm wide.
Boxwood is a shrubby plant, about 3-4 meters high, the branches are cylindrical, the small points of the branches are quadrangular, there is pubescence at the beginning, later will fall off to no hair.
Boxwood is a small tree or shrub, about 1-6 meters high, the branches are also cylindrical, the color is gray white, the small branches and leaves are quadrangular, but there will be short pubescence or the opposite sides are hairless.