Jiabaoguo (English name: Jaboticaba), also known as Guo Zhenbao, Tree Grape and Erythrina. Kausel is an evergreen shrub belonging to Myrtaceae. Its growth is slow, the bark is light gray, flaking off, leaving bright stripes after falling off.

Opposite leaves, short petiole, fluffy leaves, leathery, dark green luster, lanceolate or oval. Its flowers are clustered on the trunk and main branches, and sometimes grow on new branches. The flower is small, white, with many stamens, covered with pale yellow pollen, giving off a burst of fragrance.