The 12 cm acacia planting base tells about the adult plants are 15-25 meters high, with a diameter at breast height of 2 meters or more, the bark is dark gray, the crown is spherical, and it is oblate or obovate in old age. The branches and leaves are densely grown. Odd-pinnate compound leaves, 15-25 cm long, 7-15 leaflets, oval-shaped oblong; stipules sickle-shaped, early fall. The panicles are terminal; the flowers are milky white; the stamens are 10, separated and unequal in length; the ovary is tubular, with slender hairs, and the style is curved. The pods are fleshy, rosary-shaped, non-cracking, yellow-green, glabrous, often overhanging the treetops, and do not fall through winter, and contain 1 to 6 seeds. The seeds are kidney-shaped, dark brown. The main varieties and varieties are: ① Sophora japonicus (Panaceae, cv.). The branches are buckled and drooping, and the crown is like a canopy. Suitable for square courtyard cultivation. ② Miscellaneous leaf locust (Panthera pentaphylla, cv.) There are 5 to 7 leaflets, often clustered, with different sizes and shapes. ③Amethyst locust (var.) has pilose on the underside of the leaflets and purple perianth.
Distribution and habits It is native to northern China, but it can also grow in high-temperature and high-humidity southern and southwestern regions, especially the North China Plain and the Jianghuai region of the Yellow River Basin. It is also cultivated in Vietnam, Japan, North Korea, European and American countries. Hi light and a little shade tolerant Can adapt to colder climates. Deep and developed. The soil requirements are not strict, and it can grow normally in acidic to calcareous and mildly saline-alkaline soils, even with a salt content of about 0.15%. It is resistant to wind, drought and barrenness, and can especially adapt to bad environmental conditions such as urban soil compaction. But it grows poorly in low-lying water. Strong resistance to pollution such as sulfur dioxide and smoke. It grows faster when it is young, and grows at a medium speed later, with a long lifespan. Old trees tend to become hollow, but the latent buds have a long lifespan, which is good for crown renewal.