| Pterocactus | |
|---|---|
| |
| Pterocactus tuberosus | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Opuntioideae |
| Tribe: | Pterocacteae |
| Genus: | Pterocactus K.Schum. |
| Type species | |
| Pterocactus kuntzei | |
| Species | |
|
See text | |
Pterocactus (from Greek pteron, "wing", referring to the saucer-shaped seed of these plants) is a genus of the cactus family (Cactaceae), comprising 9 species. All Pterocactus have tuberous roots and are endemic to South and Western Argentina. The genus has been given its own tribe, the Pterocacteae.