| Classification | Asteraceae: Cirsium |
| Harvard University Herbaria Barcode(s) | 00139016 |
| Type Status | Isotype |
| Collector | I. L. Wiggins & D. Demarée |
| Collector number | 4904 |
| Country | Mexico |
| Geography | North America: North America (CA, US, MX) (Region): Mexico |
| Locality | State of Baja California, La Encantada, Sierra San Pedro Martir |
| Date Collected | 1930-09-18 |
| Elevation | 2200 m |
| Habitat | Along small canyon at upper end of meadow |
| Substrate | Granitic soil |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/99c1c7dc-6520-4178-9506-2b2f6d65088e |
| Harvard University Herbaria Barcode | 00139016 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Cirsium trachylomum S. F. Blake |
| Verified by | G. Nesom |
| Date Determined | 1987 |
| Taxon Reference | (for Cirsium trachylomum S. F. Blake) J. Wash. Acad. Sci. 1935. 25: 322. |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Cirsium trachylomum S. F. Blake |
| Verified by | I.L. Wiggins & D. Demaree |
| Taxon Reference | (for Cirsium trachylomum S. F. Blake) J. Wash. Acad. Sci. 1935. 25: 322. |
| Family | Asteraceae |
| Determination | Cirsium trachylomum S. F. Blake |
| Determination Remarks | [label name] [current name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
