| Cephalanthus | |
|---|---|
| |
| Cephalanthus occidentalis | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Rubiaceae |
| Subfamily: | Cinchonoideae |
| Tribe: | Naucleeae |
| Genus: | Cephalanthus L. |
| Type species | |
| Cephalanthus occidentalis | |
| Synonyms | |
Cephalanthus is a genus of flowering plants in the family Rubiaceae. There are about six species that are commonly known as buttonbush.[1][2]