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CCDB → Angiosperms → Elatinaceae → Elatine
| Taxon name | Status | Median (n) |
| Elatine alsinastrum L. | Accepted | 18 |
| Elatine americana (Pursh) Arn. | Accepted | 18 |
| Elatine gratioloides A. Cunn. | Accepted | 18 |
| Elatine hexandra (Lapierre) DC. | Accepted | 36 |
| Elatine hydropiper L. | Accepted | 18 |
| Elatine macropoda Guss. | Accepted | 20 |
| Elatine triandra Schkuhr | Accepted | 20 |
| Elatine triandra subsp. americana (Pursh) Á. Löve & D. Löve | Synonym of Elatine americana (Pursh) Arn. | 18 |