The word “cestrum” refers to a genus of flowering plants in the nightshade family, Solanaceae. These plants are typically shrubs or small trees and are known for their aromatic flowers and sometimes fruit. Cestrum species are often cultivated for ornamental purposes due to their attractive flowers and fragrance. One well-known species is Cestrum nocturnum, commonly known as night-blooming jessamine, which is famous for its evening-blooming, fragrant flowers.