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CCDB → Angiosperms → Malvaceae → Thomasia
| Taxon name | Status | Median (n) |
| Thomasia angustifolia Steud. | Unresolved | 20 |
| Thomasia macrocarpa Hügel | Unresolved | 10 |
| Thomasia pygmaea Benth. | Unresolved | 10 |
| Thomasia solanaceae J. Gay | Unresolved | 10 |
| Lysiosepalum involucratum Druce | Synonym of Thomasia involucrata Turcz. | 10 |
| Thomasia solanaceae | Synonym of Thomasia solanaceae J. Gay | 10 |
| Thomasia solanaceae J. Cay | Synonym of Thomasia solanaceae J. Gay | 10 |