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CCDB → Angiosperms → Acoraceae → Acorus
| Taxon name | Status | Median (n) |
| Acorus calamus L. | Accepted | 18 |
| Acorus gramineus Aiton | Accepted | 12 |
| Acorus americanus (Raf.) Raf. | Synonym of Acorus calamus var. americanus Raf. | 12 |
| Acorus asiaticus Nakai | Synonym of Acorus calamus var. angustatus Besser | 12 |
| Acorus cochinchinensis (Lour.) Schott | Synonym of Acorus calamus var. angustatus Besser | 12 |
| Acorus tatarinowii Schott | Synonym of Acorus calamus var. angustatus Besser | 12 |
| Acorus triqueter Turcz. ex Schott | Synonym of Acorus calamus var. angustatus Besser | 12 |