| Classification | Asteraceae: Cirsium |
| Harvard University Herbaria Barcode(s) | 02021841 |
| Collector | G. B. Ownbey & F. Ownbey |
| Collector number | 3068 |
| Country | United States of America |
| State | Wyoming |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Wyoming |
| Locality | Yellowstone National Park: 4.8 miles s. of Mammoth Hot Springs |
| Date Collected | 1961-08-31 |
| Verbatim Elevation | ca. 7400 ft. |
| Habitat | on talus slopes |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/0bbb8b1b-2f9e-45be-b5d6-85e21616b0f4 |
| Harvard University Herbaria Barcode | 02021841 |
| Herbarium | GH |
| Previous ownership | [ex] Herbarium of the University of Minnesota, Minneapolis |
| Family | Asteraceae |
| Determination | Cirsium tweedyi (Rydberg) Petrak |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
