Acanthocalycium
| Acanthocalycium | |
|---|---|
| Acanthocalycium spiniflorum | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Tribe: | Cereeae |
| Subtribe: | Trichocereinae |
| Genus: | Acanthocalycium Backeb. |
| Type species | |
| Acanthocalycium spiniflorum | |
| Species | |
Acanthocalycium is a genus of cactus consisting of several species from Argentina, Bolivia, Brazil, Paraguay and Uruguay. The taxon name comes from Greek akantha (meaning prickly) and kalyx (meaning buds), which refers to the spines on the floral tubes.