| Classification | Asteraceae: Cirsium |
| Harvard University Herbaria Barcode(s) | 02013001 |
| Collector | C. A. Geyer |
| Collector number | 158 |
| Country | United States of America |
| State | South Dakota |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: South Dakota |
| Locality | Missouri hills near Fort Pierre |
| Date Collected | 1839-06-14 |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/14e55e01-2846-422d-9de8-02461a5cd28f |
| Harvard University Herbaria Barcode | 02013001 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Cirsium undulatum (Nuttall) Sprengel |
| Determined by | Ownbey, Gerald Bruce & Hsi, Yu-tseng |
| Date Determined | 1960 |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
