| Name | Chaerophyllum buwaldianum var. angustatum P. F. Stevens |
| Authorship | P. F. Stevens |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Chaerophyllum buwaldianum (Mathias & Constance) K. F. Chung |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Chaerophyllum buwaldianum var. angustatum P. F. Stevens |
| Identification made in | [no date] (1), 2006 (1) |