Koelreuteria bipinnata, also known as (Chinese flame tree, Chinese golden rain tree, Bougainvillea golden-rain tree) is a species of Koelreuteria native to Asia, particularly to China. It is a small to medium-sized deciduous tree growing between 10–20 meters tall. They are also one of the few trees that bloom in the summer. They can live from 50 to 150 years.