The green tree frog can reach 10 centimeters (4 inches) in length. The frog's color depends on the temperature and the color of its environment. The green tree frog can be brown or green. The frog's mouth is white. The frog may have small, white-shaped spots on its back. At the end of its toes, it has large discs. This gives the frog the ability to climb. The eyes are golden. The fingers of the frog have webbed feet for swimming. The tympanum membrane can be seen on the frog. 