| Synnema abyssinicum (Hochst. ex Nees) Bremek. |
Accepted |
 |
TRO |
| Synnema acinos S. Moore |
Synonym |
 |
TRO |
| Synnema africanum (T. Anderson) Kuntze |
Synonym |
 |
TRO |
| Synnema angolense S.Moore |
Synonym |
 |
WCSP (in review) |
| Synnema anomalum (Blatt.) Raizada |
Unresolved |
 |
WCSP (in review) |
| Synnema avanum (Wall. ex Benth.) Benth. |
Accepted |
 |
TRO |
| Synnema balsamicum (L.f.) Alston |
Unresolved |
 |
WCSP (in review) |
| Synnema barbigera Kuntze |
Unresolved |
 |
WCSP (in review) |
| Synnema biplicatum (Nees) J.B.Imlay |
Unresolved |
 |
WCSP (in review) |
| Synnema borellii (Lindau) Benoist |
Synonym |
 |
TRO |
| Synnema brevitubum Burkill |
Synonym |
 |
TRO |
| Synnema diffusa J.K.Morton |
Unresolved |
 |
WCSP (in review) |
| Synnema gossweileri S.Moore |
Synonym |
 |
WCSP (in review) |
| Synnema griffithii Kuntze |
Unresolved |
 |
WCSP (in review) |
| Synnema hygrophiloides Lindau |
Unresolved |
 |
WCSP (in review) |
| Synnema limnophiloides S.Moore |
Synonym |
 |
WCSP (in review) |
| Synnema origanoides (Lindau) Bremek. |
Unresolved |
 |
WCSP (in review) |
| Synnema pinnatifidum Kuntze |
Unresolved |
 |
WCSP (in review) |
| Synnema prunelloides (S.Moore) Bremek. |
Unresolved |
 |
WCSP (in review) |
| Synnema schweinfurthii (C.B. Clarke) Bremek. |
Accepted |
 |
TRO |
| Synnema tenerum (Lindau) Bremek. |
Unresolved |
 |
WCSP (in review) |
| Synnema thwaitesii Kuntze |
Unresolved |
 |
WCSP (in review) |
| Synnema triflorum Kuntze |
Unresolved |
 |
WCSP (in review) |
| Synnema uliginosum Kuntze |
Unresolved |
 |
WCSP (in review) |
| Synnema verticillatum Kuntze |
Unresolved |
 |
WCSP (in review) |