Annual or biennial herbs, up to 1 m, all covered by mucus glands. Roots are stout, fleshy, and then fibrous, about 2-3 cm in diameter. Sex likes warm and humid climate, and the suitable temperature for growth is 20-30℃. It is not cold-resistant and likes sunshine. Suitable for planting in neutral and slightly alkaline sandy loam with deep soil layer, loose and fertile soil and good drainage. Avoid continuous cropping, tomatoes and other solanaceae plants should not be used as previous crops.
Distributed in North China, Northwest China and Southwest China, cultivated in East China or escaped into the wild; Location: Inner Mongolia, Hebei, Henan, Northeast and Northwest provinces. Qinghai is distributed in Haidong, Hainan, Huangnan, Haibei and other Tibetan autonomous prefectures, as well as Mongolia, the Soviet Union, Europe, India and other places. Often born on hillsides, roadsides, residential areas and river banks.
Roots, leaves and seeds are medicinal, containing scopolamine and scopolamine, which have spasmolytic and analgesic effects and can be used as antitussive drugs and anesthetics. Seed oil can be used to make soap.