| Classification | Asteraceae: Silphium |
| Harvard University Herbaria Barcode(s) | 00012376 |
| Type Status | Syntype |
| Collector | E. Hall |
| Collector number | 321 |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas |
| Locality | Eastern Texas, Houston |
| Date Collected | 1872-04-16 |
| Habitat | Open woods |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6d75c0af-c24d-435d-a3c6-1ca01d92d4b6 |
| Harvard University Herbaria Barcode | 00012376 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Silphium gracile A. Gray |
| Determined by | [L. H. Shinners (scripsit) J. McI. Shapiro, 2020] |
| Annotation Text | TYPE ; [Annoatated on sheet] |
| Family | Asteraceae |
| Determination | Silphium gracile A. Gray |
| Determined by | [A. Gray (scripsit) J. McI. Shapiro, 2020] |
| Determination Remarks | [is label name] |
| Annotation Text | n. sp. |
| Family | Asteraceae |
| Determination | Silphium gracile A. Gray |
| Determined by | L. M. Perry |
| Date Determined | 1936 |
| Annotation Text | ! ; [Annotated on sheet] |
| Family | Asteraceae |
| Type Status | Syntype |
| Syntype of | Silphium gracile A. Gray |
| Verified by | Bates, Vernon M. |
| Date Determined | 1983 |
| Determination Remarks | [is filed under name] |
| Annotation Text | SYNTYPE |
| Taxon Reference | (for Silphium gracile A. Gray) Proc. Amer. Acad. Arts 1873. 8: 653. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
