Females are usually slightly bigger than the males. These frogs tend to be light bluish green to emerald green dorsally, with scattered white or gold spots on the side and occasionally on the back from the angle of the mouth to the base of the forearms. As with many treefrogs, this species is capable of some color change. The ventral surface is a milky white and rough in texture. The dorsum and throat are smoother to the touch.
Vomerine teeth are prominant between and behind the choanea.
These treefrogs have enormous toe pads. Fingers are partially webbed, but the toes are almost completely webbed. There is a distinct tympanum present. The eye has a horizontal pupil whereas other hylids tend to have a vertical pupil. The fatty ridge over the eye is a very distinct trait of the White's Treefrog.