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CCDB → Angiosperms → Cactaceae → Arrojadoa
| Taxon name | Status | Median (n) |
| Arrojadoa penicillata (Gürke) Britton & Rose | Accepted | 11 |
| Arrojadoa rhodantha (Gürke) Britton & Rose | Accepted | 11 |
| Arrojadoa aureispina Buining & Brederoo | Synonym of Arrojadoa rhodantha (Gürke) Britton & Rose | 11 |