| Seedbox | Ludwigia | alternifolia | | 486 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Wing-leaved Primrose-willow | Ludwigia | decurrens | | 23 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Cylindric-fruited Primrose-willow | Ludwigia | glandulosa | | 3 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Large-flower Primrose-willow | Ludwigia | hexapetala | | 7 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Spindleroot | Ludwigia | hirtella | | 3 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Angle-stemmed Primrose-willow | Ludwigia | leptocarpa | | 3 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Narrow-leaved Primrose-willow | Ludwigia | linearis | | 26 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Marsh Seedbox | Ludwigia | palustris | | 213 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Floating Primrose-willow | Ludwigia | peploides var. glabrescens | | 61 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Globefruit Primrose-willow | Ludwigia | sphaerocarpa | | 20 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |
| Savannah Primrose-willow | Ludwigia | virgata | | 0 | Evening Primrose Family | Onagraceae | Myrtales | Magnoliopsida | Plantae |