What is the dogwood in the Double Ninth Festival poem?

It is Evodia rutaecarpa, which grows in mountains, roadsides or sparse forests in warm areas. Production areas are distributed in Zhejiang, Shaanxi, Guangdong, Guangxi, Guizhou, Yunnan, Sichuan, Hunan, Hubei, Fujian and Jiangxi, which can be described as all over the country.

Cornus officinalis in ancient Chongyang, generally has four uses:

One is to wear cornus' bag on the elbow;

The second is to insert Cornus officinalis in the crown;

The third is to drink dogwood wine;

Fourth, the dogwood festival and dogwood club will replace the Double Ninth Festival.

Evodia rutaecarpa is a very common Chinese medicine. Evodia rutaecarpa can be made into four kinds of Evodia rutaecarpa pills. From their efficacy, we can also see why Evodia rutaecarpa was inserted in ancient times.

The Double Ninth Festival belongs to autumn, and the weather turns cold, but people's eating inertia is still as cold as summer, so the stomach is easy to catch cold, leading to deficiency cold and vomiting. There are also haggard, pneumothorax and choking on diaphragm, which are mainly caused by lack of exercise and rest. Therefore, on the day of Chongyang, use Evodia rutaecarpa and climb the mountain, and these symptoms will have the effect of removing the disease with medicine.