Subfamily Uvulariaceae is a taxonomic classification for a group of flowering plants known for their unique bell-shaped flowers. Synonyms for this subfamily include tribe Polypremoneae, family Hydrangeaceae, and tribe Hydrangeeae. These synonyms reflect the changing understanding of the relationships between plants over time as new genetic and morphological data are discovered. While the name Subfamily Uvulariaceae is currently the accepted designation for this group of plants, it is important to be aware of these alternative names as they may be encountered in older literature or in different taxonomic systems. Understanding the evolution of botanical taxonomic classification can deepen our appreciation for the diversity of the natural world.