Listing genus (サボテン科)
| genus | accepted_name | genus_ja | subfamily_ja | subfamily | # species | ||
|---|---|---|---|---|---|---|---|
| Oreocereus Riccob. | Accepted | サボテン | Cactoideae | 8 | Show | Google Search | |
| Oroya Britton & Rose | Accepted | サボテン | Cactoideae | 2 | Show | Google Search | |
| Ortegocactus Alexander | = Cochemiea | Show | Google Search | ||||
| ×Pacherocactus G.D.Rowley | Accepted | サボテン | Cactoideae | Show | Google Search | ||
| ×Pachgerocereus Moran | = Pacherocactus | Show | Google Search | ||||
| Pachycereus (A.Berger) Britton & Rose | Accepted | サボテン | Cactoideae | 6 | Show | Google Search | |
| Parodia Speg. | Accepted | パロディア（パロジア） | サボテン | Cactoideae | Show | Google Search | |
| Pediocactus Britton & Rose | Accepted | サボテン | Cactoideae | 7 | Show | Google Search | |
| Pelecyphora C.Ehrenb. | Accepted | サボテン | Cactoideae | Show | Google Search | ||
| Peniocereus (A.Berger) Britton & Rose | Accepted | サボテン | Cactoideae | 8 | Show | Google Search | |
| Pereskia Miller | Accepted | モクキリン | モクキリン | Pereskioideae | Show | Google Search | |
| Pereskiopsis Britton & Rose | Accepted | ウチワサボテン | Opuntioideae | 7 | Show | Google Search | |
| Pfeiffera Salm-Dyck | Accepted | サボテン | Cactoideae | 6 | Show | Google Search | |
| Phyllocactus Link | = Epiphyllum | Show | Google Search | ||||
| Pilosocereus Byles & G.D.Rowley | Accepted | サボテン | Cactoideae | 56 | Show | Google Search | |
| Polaskia Backeb. | Accepted | サボテン | Cactoideae | 2 | Show | Google Search | |
| Praecereus Buxb. | Accepted | サボテン | Cactoideae | 2 | Show | Google Search | |
| Pseudopilocereus Baxb. | = Pilosocereus | Show | Google Search | ||||
| Pterocactus K.Schum. | Accepted | ウチワサボテン | Opuntioideae | 10 | Show | Google Search | |
| Puna R.Kiesling | = Maihueniopsis | Show | Google Search | ||||
| Pyrrhocactus A.Berger | = Eriosyce | Show | Google Search | ||||
| Quiabentia Britton & Rose | Accepted | ウチワサボテン | Opuntioideae | 2 | Show | Google Search | |
| Rapicactus Buxb. & Oehme | Accepted | サボテン | Cactoideae | 5 | Show | Google Search | |
| Rauhocereus Backeb. | Accepted | サボテン | Cactoideae | 1 | Show | Google Search | |
| Rebutia K.Schum. | Accepted | レブチア | サボテン | Cactoideae | 20 | Show | Google Search |