| Name | Lysimachia longifolia Pursh |
| Authorship | Pursh |
| Rank | Species |
| Placed in | Lysimachia |
| Citation | 1813 Fl. Amer. Sept. [Pursh] 1: 135 (-136) |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lysimachia longifolia Pursh |
| Identification made in | [no date] (1) |