Annam tree frog

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.

Male Annam tree frogs grow to a snout–vent length of about 37 mm and females to 40 mm. Tadpoles are up to 32 mm in length.

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.