| Classification | Asteraceae: Silphium |
| Harvard University Herbaria Barcode(s) | 00012374 |
| Type Status | Lectotype |
| Collector | F. J. Lindheimer |
| Country | United States of America |
| State | Texas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Texas: Harris County: Houston |
| Date Collected | 1842-05-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3e45e114-387d-43b0-8278-4524125c7389 |
| Harvard University Herbaria Barcode | 00012374 |
| Herbarium | GH |
| Previous ownership | ex Herb. John A. Lowell; Transferred from The Boston Society of Natural History to the Gray Herbarium of Harvard University, October, 2, 1941 |
| Family | Asteraceae |
| Determination | Silphium scaberrimum Elliot |
| Determination Remarks | [is label name] |
| Family | Asteraceae |
| Determination | Silphium gracile A. Gray |
| Determined by | L. H. Shinners |
| Date Determined | 1946-02-20 |
| Annotation Text | [Annotated on sheet] |
| Family | Asteraceae |
| Determination | Silphium radula var. gracile (A. Gray) Clevinger |
| Determined by | J. A. Clevenger |
| Date Determined | 1999-07-** |
| Family | Asteraceae |
| Type Status | Lectotype |
| Lectotype of | Silphium gracile A. Gray |
| Verified by | J. A. Clevinger |
| Date Determined | 1999-07-** |
| Determination Remarks | [is filed under name] |
| 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 |
