| Name | Ambrosia longistylis Nuttall |
| Authorship | Nuttall |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Ambrosia Linnaeus |
| GUID | urn:lsid:ipni.org:names:176103-1 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ambrosia longistylis Nuttall |
| Identification made in | [no date] (1) |