| 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) |