| Name | Silphium gracile A. Gray |
| Authorship | A. Gray |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Silphium |
| GUID | urn:lsid:ipni.org:names:249139-1 |
| Citation | 1873 Proc. Amer. Acad. Arts 8: 653 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Silphium gracile A. Gray |
| Identification made in | [no date] (3), 1936 (2), 1946 (1), 1983 (2), 1999 (2) |
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