| Name | Marah watsonii (Cogniaux) Greene |
| Authorship | (Cogniaux) Greene |
| Rank | Species |
| Placed in | Marah |
| GUID | urn:lsid:ipni.org:names:152842-2 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Marah watsonii (Cogniaux) Greene |
| Identification made in | [no date] (10) |