Toon is the famous specialty of Huguan County, which is native to China and distributed in the north and south of the Yangtze River. It has the most nutritious value in the bridge township of Huguan County and is a special product of Huguan. It is a deciduous tree, deciduous tree, dioecious, leaves with even pinnately compound leaves, panicles, bisexual flowers white, fruit is elliptic capsules, winged seeds, seeds can be propagated. The tall tree is the preferred tree species for landscaping except for the consumption of alfalfa buds.

Axillary buds are rich in nutrients and have therapeutic effects. They are mainly used for treating cold, rheumatism, stomach pain and dysentery. Toon is known as the "tree vegetable" and is the bud of the camphor tree. Every year before and after the spring rain, the buds of the fragrant scent can be made into various dishes. It is not only nutritious, but also has high medicinal value. The fragrant leaves are thick and buds, and the green leaves are red, like agate and jade. The aroma is rich, and the nutrition is much richer than other vegetables. It is a delicious dish for banquets. Toon can make delicious meals, scrambled eggs, fragrant bamboo shoots, tofu with tofu, fried fragrant cakes, cold fragrant cilantro, marinated cilantro and so on. Citron can make different flavors on the table of ordinary people, and it has good medicinal value. The Taihang Mountain Grand Canyon in Huguan is a very famous specialty.