Production RegionsPrimarily produced in the Chinese provinces of Jiangsu, Guangdong, Zhejiang, Fujian.
Macroscopic FeaturesDatura metel L.: Intact pieces are 9~15cm long, flower is bisexual, 5 lobes, lobe tip has a short point tip, lip-like shape, some are polyphyll; 5 stamens, all developed, insert between the corolla tubes; stele is rod-like. 2 carpels, 2 chambers; placentation axle, numerous ovules. Capsule fruit. Calyx is ringed-broken near the fruit, only the base remains. Datura innoxia Mill.: Intact piece is 9~11cm, corolla lobe tip is triangular, short tip between two corolla lobes, stele has a halberd-like shape.
Quality RequirementsSuperior medicinal material has pale color.
PropertiesAcrid, warm, toxic.
FunctionsCalms convulsion, calms down, relieves pain, anaesthesia. The smoke when burning the flower has relatively strong effect of calming panting.
OriginThe dried flower of Datura metel L., Datura inoxia Mill.(Solanaceae). The first is also called ‘south yang jin hua’, the second is also called ‘north yang jin hua’.
