| Author | Title | Journal/publisher | Literature ref. no. |
| Thulin, M. (1983) | Lobeliaceae | Flora Zambesiaca 7(1) | 132 |
Note that the process of capturing references from species to the literature and the reverse may be incomplete.
| Species found: 4 |
| Lobelia fervens subsp. recurvata |
| Lobelia sonderiana |
| Lobelia welwitschii |
| Monopsis zeyheri |