| Name | Lythrum acutangulum Lagasca |
| Authorship | Lagasca |
| Rank | Species |
| Placed in | Lythrum |
| Citation | 1816 Gen. Sp. Pl. [Lagasca] 16 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Lythrum acutangulum Lagasca |
| Identification made in | [no date] (1) |