| Oryctanthus alveolatus (Kunth) Kuijt |
Accepted |
 |
WCSP (in review) |
| Oryctanthus alveolatus var. amplexicaulis (Kunth) Rizzini |
Synonym |
 |
WCSP (in review) |
| Oryctanthus alveolatus var. kuijtii Rizzini |
Synonym |
 |
WCSP (in review) |
| Oryctanthus amazonicus Ule |
Synonym |
 |
TRO |
| Oryctanthus amplexicaulis (Kunth) Eichler |
Synonym |
 |
WCSP (in review) |
| Oryctanthus andrieuxii Engl. |
Unresolved |
 |
WCSP (in review) |
| Oryctanthus archeri A.C. Sm. |
Synonym |
 |
TRO |
| Oryctanthus asplundii Kuijt |
Accepted |
 |
TRO |
| Oryctanthus botryostachys Eichler |
Synonym |
 |
WCSP (in review) |
| Oryctanthus chlamydatus Rizzini |
Synonym |
 |
WCSP (in review) |
| Oryctanthus chloranthus (Miq.) Eichler |
Synonym |
 |
TRO |
| Oryctanthus cordifolius (C. Presl) Urb. |
Accepted |
 |
TRO |
| Oryctanthus costulatus Rizzini |
Accepted |
 |
WCSP (in review) |
| Oryctanthus diversifolius (Benth.) Engl. |
Unresolved |
 |
WCSP (in review) |
| Oryctanthus florulentus (Rich.) Tiegh. |
Accepted |
 |
WCSP (in review) |
| Oryctanthus glaberrimus (Oliv.) Eichler |
Synonym |
 |
TRO |
| Oryctanthus grahamii (Benth.) Engl. |
Accepted |
 |
TRO |
| Oryctanthus grandis Kuijt |
Unresolved |
 |
WCSP (in review) |
| Oryctanthus granulosus Rizzini |
Synonym |
 |
TRO |
| Oryctanthus guatemalensis (Standl.) Standl. & Steyerm. |
Synonym |
 |
TRO |
| Oryctanthus laceratus Kuijt |
Synonym |
 |
WCSP (in review) |
| Oryctanthus ligustrinus (C. Presl) Urb. |
Synonym |
 |
TRO |
| Oryctanthus lucarquensis (Kunth) A.C. Sm. |
Synonym |
 |
TRO |
| Oryctanthus neurophyllus Kuijt |
Unresolved |
 |
WCSP (in review) |
| Oryctanthus occidentalis (L.) Eichler |
Accepted |
 |
WCSP (in review) |
| Oryctanthus oerstedii (Oliv.) Engl. |
Accepted |
 |
TRO |
| Oryctanthus ovalifolius (Ruiz & Pav.) J.F. Macbr. |
Accepted |
 |
TRO |
| Oryctanthus pedunculatus (Kuijt) Rizzini |
Accepted |
 |
WCSP (in review) |
| Oryctanthus phanerolomus (Standl.) Kuijt |
Synonym |
 |
TRO |
| Oryctanthus phthirusoides Rizzini |
Accepted |
 |
WCSP (in review) |
| Oryctanthus ruficaulis (Poepp. & Endl.) Eichler |
Synonym |
 |
WCSP (in review) |
| Oryctanthus ruficaulis var. crassifolius Eichler |
Synonym |
 |
TRO |
| Oryctanthus ruficaulis var. latifolius Eichler |
Synonym |
 |
TRO |
| Oryctanthus scabridus Eichler |
Accepted |
 |
TRO |
| Oryctanthus spicatus (Jacq.) Eichler |
Accepted |
 |
WCSP (in review) |
| Oryctanthus tehuacacensis (Oliv.) Engl. |
Accepted |
 |
TRO |
| Oryctanthus tehuacanensis (Oliv.) Engl. |
Unresolved |
 |
WCSP (in review) |