Annam tree frog (Hyla simplex), also known as the South China tree toad, is a species of frog in the family Hylidae. It is found in southern China, Vietnam, and Laos. The Hainan tree toad (H. s. hainanensis) from Hainan Island is treated as a subspecies.[1]
Male Annam tree frogs grow to a snout–vent length of about 37mm and females to 40mm. Tadpoles are up to 32mm in length.[2]
Annam tree frogs are a common, arboreal species living in montane areas, including fields, bamboo forests and shrubland. Breeding takes place in rice paddies and in permanent pools. It is potentially threatened by habitat degradation.