| Name | Lathyrus polymorphus var. hapemanii (A. Nelson) C. L. Hitchcock |
| Authorship | (A. Nelson) C. L. Hitchcock |
| Rank | Variety |
| Placed in | Lathyrus polymorphus Nuttall |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Lathyrus polymorphus var. hapemanii (A. Nelson) C. L. Hitchcock |
| Identification made in | 1979 (2) |