| Name | Caltha palustris var. siberica Regel |
| Authorship | Regel |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Caltha palustris Linnaeus |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Caltha palustris var. siberica Regel |
| Identification made in | [no date] (5) |