The soapnut tree, also known as soapberry tree, is a common deciduous tree distributed in the southern provinces of China, such as Guizhou, Hunan, Guangxi, Jiangsu, Zhejiang and other regions. Its morphology is roughly as follows:

Trunk: The trunk of the soapnut tree is high and lofty, with a diameter of up to 1 meter, and the bark is gray or black-brown, with many long stripes of cracks on the surface. Leaves: soapnut tree leaves are broadly ovate or long oval, some leaves slightly triangular shape, leaf length 5-15 cm, width 3-8 cm, leaf surface color dark green, thick texture; back color light green, pubescent, chu-chu. Flowers: Soapberry tree flowers are small, narrowly conical inflorescences with a fragrant odor.

Inflorescences are 2 to 5 centimeters long, flowers densely arranged in bunches, whorls white or brown, lobes 5, slightly curved. Flowering occurs relatively early from March to June. Fruit: The fruit of the soapnut tree is a seed fruit, called "soap pods", the surface of the fruit is smooth, with a thin shell and thicker seed coat, the fruit is yellowish-green when ripe, 5-8 cm in diameter, length of 12 cm or so. The fruit contains a variety of beneficial substances inside, such as saponin.

In short, the saponaria tree is a beautiful and nutritious tree with some medicinal values.