| Rubiaceae | |
Badusa corymbifera
| (G. Forst.) A. Gray | Proc. Amer. Acad. Arts 4: 308 | 1860 |
| Rubiaceae | |
Badusa occidentalis
| Guillaumin | J. Arnold Arbor. 13: 3 | 1932 |
| Rubiaceae | |
Badusa palauensis
| Valeton | | |
| Rubiaceae | |
Badusa palawanensis
| Ridsdale | Blumea 28: ? | 1982 |
| Rubiaceae | |
Badusa philippica
| (Cav.) S. Vidal | Revis. Pl. Vasc. Filip. 150 | 1886 |