| Name | Amaranthus greggii S. Watson |
| Authorship | S. Watson |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Amaranthus Adanson |
| GUID | urn:lsid:ipni.org:names:59526-1 |
| Citation | 1877 Proc. Amer. Acad. Arts 12: 274 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Amaranthus greggii S. Watson |
| Identification made in | [no date] (4), 1952 (4), 1961 (1) |