| Classification | Asteraceae: Silphium |
| Harvard University Herbaria Barcode(s) | 00012383 |
| Type Status | Isotype |
| Collector | H. C. Benke |
| Collector number | 5176 |
| Country | United States of America |
| State | Kansas |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Kansas: Barton County |
| Locality | Claflin (R.R. 2) |
| Date Collected | 1929-08-19 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1d48670a-3188-45e3-88f9-4f7b64a1af77 |
| Harvard University Herbaria Barcode | 00012383 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Silphium integrifolium var. mesochorum Benke |
| Verified by | J. A. Clevinger |
| Date Determined | 1999-07-** |
| Determination Remarks | [filed under] |
| Annotation Text | Isotype |
| Taxon Reference | (for Silphium integrifolium var. mesochorum Benke) Rhodora 1932. 34: 10. |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Silphium integrifolium var. mesochorum Benke |
| Verified by | V. Bates |
| Date Determined | 1983 |
| Annotation Text | ISOTYPE |
| Taxon Reference | (for Silphium integrifolium var. mesochorum Benke) Rhodora 1932. 34: 10. |
| Family | Asteraceae |
| Determination | Silphium integrifolium var. speciosum (Nuttall) J. A. Clevenger |
| Determined by | J. A. Clevenger |
| Date Determined | 1999-07-** |
| Determination Remarks | [current name] |
| Annotation Text | [ined.] |
| Family | Asteraceae |
| Determination | Silphium speciosum Nuttall |
| Determined by | L.M.P. |
| Date Determined | 1936 |
| Annotation Text | [Annotated on sheet] |
| Family | Asteraceae |
| Determination | Silphium integrifolium var. mesochorum Benke |
| Determination Remarks | [label name] |
| Annotation Text | var. nov. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |