| Rubiaceae Juss. (Family) |
C | | | | | | | | B | | details |
| Sphinctanthus Benth. (Genus) |
C | | | | | | | | | | details |
| Sphinctanthus acutilobus Huber (Species) |
| | | | | | | | | | details |
| Sphinctanthus aurantiaca (Standl.) Fagerl. (Species) |
| | | | | | | | | | details |
| Sphinctanthus hasslerianus Chodat (Species) |
| | | | | | | | | | details |
| Sphinctanthus insignis Steyerm. (Species) |
| | | | | | | | | | details |
| Sphinctanthus longiflorus Griseb. (Species) |
| | | | | | | | | | details |
| Sphinctanthus maculatus Spruce ex. K.Schum. (Species) |
| | | | | | | | | | details |
| Sphinctanthus microphyllus K.Schum. (Species) |
C | | | | | | | | | | details |
| Sphinctanthus rupestris Benth. (Species) |
| | | | | | | | | | details |
| Sphinctanthus striiflorus (DC.) Hook.f. (Species) |
C | | | | | | | | | | details |