National Botanic Garden.
Cercidiphyllum japonicum, known as the Japanese Judas-tree, is a species of flowering tree in the Cercidiphyllaceae family that commonly goes by the name Katsura tree. It is native to China and Japan. The tree is deciduous and grows to 40 to 60 feet. Its leaves are round. The tree flowers in March or April and produces winged seeds. There are several different cultivars grown including 'Aureum', 'Heronswood Globe', 'Pendula', and 'Ruby'.