| Name | Apium butleri Engelmann |
| Authorship | Engelmann |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Apium Linnaeus |
| GUID | urn:lsid:ipni.org:names:16441-2 |
| Citation | 1886 Proc. Amer. Acad. Arts 21: 453 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Apium butleri Engelmann |
| Identification made in | [no date] (2) |
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