| Name | Rorippa palustris var. williamsii (Britton) Hultén |
| Authorship | (Britton) Hultén bis |
| Rank | Variety |
| Placed in | Rorippa palustris (Linnaeus) Besser |
| Citation | 1945 Fl. Alaska & Yukon 5: 828 |
| Holdings | 25 Specimens held in the Harvard University Herbaria identified as Rorippa palustris var. williamsii (Britton) Hultén |
| Identification made in | [no date] (25) |
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