| Name | Xanthium leptocarpum Millspaugh & Sherff |
| Authorship | Millspaugh & Sherff |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Xanthium |
| Citation | 1918 Publ. Field Columb. Mus., Bot. Ser. 4: 3 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Xanthium leptocarpum Millspaugh & Sherff |
| Identification made in | [no date] (1), 2024 (2) |