Chundian tree is what we usually call Toona sinensis, also called Toona sinensis bud, Toona sinensis, Toona sinensis, Toona sinensis and so on. Some dialects are called Chundian Tree. Native to central and southern China. It is cultivated in the northeast from southern Liaoning, west to Gansu, north to southern Inner Mongolia, south to Guangdong and Guangxi, and southwest to Yunnan. Among them, Shandong, Henan and Hebei are the most planted, and Qinling Mountain in Shaanxi and Xiaolongshan Mountain in Gansu are naturally distributed. Toona sinensis likes temperature, light and humidity, and is suitable for growing in fertile and humid soil around rivers and houses. Generally, sandy loam is better.

In ancient times, Toona sinensis was called Toona sinensis and Ailanthus altissima was called Ailanthus altissima. Toona sinensis is called "the vegetable on the tree". Every spring around Grain Rain, the buds of Toona sinensis can be made into various dishes. It is not only nutritious, but also has high medicinal value. Toona sinensis contains calcium, phosphorus, potassium and sodium. Has the effects of tonifying deficiency, strengthening yang, consolidating essence and tonifying kidney, promoting hair growth, diminishing inflammation, stopping bleeding and relieving pain, promoting qi circulation, regulating blood, and invigorating stomach. Anyone with kidney-yang deficiency, cold pain in the waist and knees, nocturnal emission, impotence and alopecia should eat it.

Toona sinensis can bear fruit, dioecious, even pinnate compound leaves, panicles, white bisexual flowers, oval fruit, winged seeds, reproductive and inedible.

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What should you pay attention to when eating Toona sinensis: Toona sinensis is known as "the green vegetable on the tree". Chinese medicine believes that Toona sinensis not only has the functions of bitter cold, clearing away heat and toxic materials, invigorating stomach and regulating qi, killing insects and fixing sperm, but also is rich in minerals such as vitamin C, high-quality protein, phosphorus and iron, which is a rare treasure in vegetables. There are many ways to eat Toona sinensis, and one thing needs special attention. In order to reduce the nitrite content of Toona sinensis, we must eat Toona sinensis scalded by boiling water, because Toona sinensis generally contains more than 30 milligrams of nitrite per kilogram, while Toona sinensis scalded by boiling water only has 4.4 milligrams per kilogram.