Sophora japonica (scientific name: Styphnolobiumjaponicum (L.) Schott), also known as acacia, is a tall tree with pinnately compound leaves similar to those of acacia. Flowers are light yellow, can be cooked and eaten, can also be used as traditional Chinese medicine or dye. Unopened acacia flowers are commonly known as "acacia rice", is a kind of traditional Chinese medicine.

Acacia flowers, also known as acacia flowers, broadly speaking, acacia flowers refers to the flowers and buds of the legume family, but the open flowers are generally referred to as "acacia flowers", also known as "acacia stamens", flower buds are known as "acacia rice The flower buds are called "acacia rice". Often planted on the side of the house, roadside, China is widely cultivated throughout the country, mainly in the north, to the Loess Plateau and the North China Plain for more, usually in April and May each year to bloom.