Biological characteristics: Huang Jinguo is also known as Baiying and Baiying. Native to tropical America. Like warm, humid and sunny environment, not cold-resistant, afraid of waterlogging and drought. Suitable for fertile, loose and well-drained sandy loam. The temperature in winter shall not be lower than 12℃. Cultivar: Solanum lyratum Thunb is a small shrub. The plant height is 2m, and the stems are densely covered with white hairs, with scattered barbs. Leaves alternate, broadly ovate, with shallow edges. These flowers are purple. The fruit is oval, the young fruit is light green, and it is orange when mature. The fruit surface has irregular milky white protrusions, which are novel and lovely. Propagation methods: sowing and cutting propagation are commonly used. Sowing, pot planting in spring, the optimum temperature for germination is 20-25℃, and germination is 7- 10 days after sowing. Cutting: In summer, the top branch is used as the cutting, the length is 12- 15cm, and it can take root in the sand bed 15-20 days, and it can be transplanted in the open field or potted plants for 30 days.