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CCDB → Angiosperms → Acanthaceae → Acanthus
| Taxon name | Status | Median (n) |
| Acanthus ebracteatus Vahl | Accepted | 22 |
| Acanthus ilicifolius L. | Accepted | 22 |
| Acanthus mollis L. | Accepted | 28 |
| Acanthus spinosus L. | Accepted | 40 |
| Acanthus volubilis Wall. | Accepted | 22 |
| Acanthus pubescens (Oliv.) Engl. | Unresolved | 28 |
| Acanthus longifolius Poir. | Synonym of Acanthus mollis L. | 28 |
| Acanthus lusitanicus auct. | Synonym of Acanthus mollis L. | 28 |
| Acanthus caroli-alexandri Hausskn. | Synonym of Acanthus spinosus L. | 40 |