The style bears a pollen-cup, also known as an indusium, at the tip, a unique character for the family. The indusium has a function in secondary pollen presentation, a phenomenon also occurring in the related families Asteraceae and Campanulaceae. The ovary is inferior and the fruit is a drupe, a nut or a capsule.
The plant's distinctive feature, the pollen-cup (indusium), is unique to its family and also observed in related families like Asteraceae and Campanulaceae, which exhibit similar secondary pollen presentation. The inferior ovary and drupe fruit are common characteristics of this plant group.