| Name | Chaerophyllum lineare var. planifolium P. F. Stevens |
| Authorship | P. F. Stevens |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Chaerophyllum lineare (Hemsley) K. F. Chung |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Chaerophyllum lineare var. planifolium P. F. Stevens |
| Identification made in | [no date] (3), 2006 (1) |