Wunderlin, R.P., Hansen, B.F. & Franck, A.R. (2018) Flora of Florida. Volume 5. University Press of Florida
| Species | Content | |
| katangensis (Gürke ex De Wild.) E.L.A.N.Simons & Wieringa | Description, Image | |
| ovalifolia (Forssk.) Diane & Hilger | Description, Image | |
| strigosa (Willd.) Diane & Hilger | Description, Image |