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CCDB → Angiosperms → Onagraceae → Chamaenerion
| Taxon name | Status | Median (n) |
| Chamaenerion subdentatum Rydb. | Unresolved | 18 |
| Chamaenerion angustifolium (L.) Scop. | Synonym of Epilobium angustifolium L. | 18 |
| Chamaenerion angustifolium var. intermedium (Wormsk.) Lange | Synonym of Epilobium angustifolium subsp. circumvagum Mosquin | 18 |
| Chamaenerion latifolium (L.) Sweet | Synonym of Epilobium latifolium L. | 36 |
| Chamaenerion palustre (L.) Schreb. | Synonym of Epilobium palustre L. | 18 |