| Name | Lathyrus eucosmus Butters & H. St. John |
| Authorship | Butters & H. St. John |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Lathyrus |
| GUID | urn:lsid:ipni.org:names:136089-2 |
| Citation | 1917 Rhodora 19: 160 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Lathyrus eucosmus Butters & H. St. John |
| Identification made in | [no date] (1), 1917 (1) |