| Name | Peucedanum megarrhiza A. Nelson |
| Authorship | A. Nelson |
| Rank | Species |
| Placed in | Peucedanum |
| Citation | 1899 Bull. Torrey Bot. Club 26(3): 130 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Peucedanum megarrhiza A. Nelson |
| Identification made in | [no date] (1), 2015 (1) |