What kind of fruit is this? I saw it in Fogai Mountain in Jiangshan. Can I eat? What's the scientific name?

The fruit of four flowers.

Also known as: jujube, bayberry, litchi.

According to the data, fruits are nutritious and edible. I haven't eaten.

See bright leaves in spring, jade flowers in summer and red fruits and leaves in autumn, which is an extremely beautiful landscape product.

Because its fruit is nutritious, edible and the whole plant can be used as medicine, it is an important economic tree species.