| Author | Title | Journal/publisher | Literature ref. no. |
| Thulin, M. (1985) | Lobeliaceae | Flore d'Afrique Centrale Botanic Garden Meise, Belgium | 1296 |
Note that the process of capturing references from species to the literature and the reverse may be incomplete.
| Species found: 4 |
| Cyphia lasiandra |
| Lobelia erinus |
| Lobelia fervens subsp. recurvata |
| Lobelia welwitschii |