| Name | Ludwigia cylindrica var. brachycarpa Torrey & A. Gray |
| Authorship | Torrey & A. Gray |
| Rank | Variety |
| Placed in | Ludwigia cylindrica Elliott |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ludwigia cylindrica var. brachycarpa Torrey & A. Gray |
| Identification made in | 1985 (1) |