| Name | Ambrosia carduacea (Greene) W. W. Payne |
| Authorship | (Greene) W. W. Payne |
| Rank | Species |
| Placed in | Ambrosia Linnaeus |
| Remarks | [confirmed][imported from GBIF] |
| Citation | 1964 J. Arnold Arbor. 45: 416 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Ambrosia carduacea (Greene) W. W. Payne |
| Identification made in | [no date] (1) |