What plants are used to make boxes and old piles in mountainous areas of yingtan?

Pyracantha yingtan is a prefecture-level city under the jurisdiction of Jiangxi Province. In the mountainous area of yingtan, a plant called pyracantha was used to make box-shaped old piles. The plant is evergreen all the year round, with small green leaves. It likes sunshine and drought, and can prune messy branches in time. Box landscape is one of the outstanding traditional arts in China, and it is an artistic work that uses plants and rocks as basic materials to express the natural landscape of the basin.