| Classification | Asteraceae: Cirsium |
| Classification 1 | Asteraceae: Carduus |
| Harvard University Herbaria Barcode(s) | 00139019 |
| Type Status | Isotype |
| Collector | C. H. T. Townsend & C. M. Barber |
| Collector number | 59 |
| Country | Mexico |
| State | Chihuahua |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Chihuahua |
| Locality | Near Colonia Garcia in the Sierra Madres, alt. 7500 ft. |
| Date Collected | 1895-06-02 |
| Elevation | 2286 m |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7e7b6fbb-f8e5-4546-a813-0164350af664 |
| Harvard University Herbaria Barcode | 00139019 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Cirsium ochrocentrum var. townsendii Petrak |
| Verified by | G. Nesom |
| Date Determined | 1988 |
| Taxon Reference | (for Cirsium ochrocentrum var. townsendii Petrak) Beih. Bot. Centralbl. 1917. 35: 420. |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Cirsium ochrocentrum var. townsendii Petrak |
| Verified by | G.B. Ownbey |
| Date Determined | 1960 |
| Taxon Reference | (for Cirsium ochrocentrum var. townsendii Petrak) Beih. Bot. Centralbl. 1917. 35: 420. |
| Family | Asteraceae |
| Determination | Cirsium undulatum (Nuttall) Sprengel |
| Determined by | G. Nesom |
| Date Determined | 1988 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Cirsium ochrocentrum A. Gray |
| Determined by | B.L. Robinson |
| Date Determined | 1911 |
| Family | Asteraceae |
| Determination | Carduus ochrocentrus Greene |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Fruit |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
