Who knows what kind of plant this is?

This is the scientific name of papaya in Rosaceae. But its scientific name is not as famous as another kind of "papaya".

There is a common fruit in the south, also called papaya, which is actually papaya of Chaenomeles.

1. Chaenomeles of Rosaceae: This genus includes Chaenomeles (Chaenomeles sinensis), Begonia sessilifolia (Chaenomeles sinensis) and so on. Several species are temperate woody plants native to China, whose fruits are edible, medicinal, beautiful and ornamental; It is also the papaya mentioned in traditional culture and poetry, such as the famous sentence "Vote for me with papaya and repay me with Joan" in the Book of Songs.

2. Tropical Fruit Papaya (Caricaceae): A plant of the genus Caricaceae, native to Southeast Asia, was introduced to China in the late Ming Dynasty in the17th century. Because its appearance is similar to that of China, it is named "Caricaceae", which can also be used for food and medicine, but not for viewing.