| Classification | Asteraceae: Eupatorium |
| Classification 1 | Asteraceae: Ageratina |
| Harvard University Herbaria Barcode(s) | 00007337 |
| Type Status | Holotype |
| Collector | C. G. Pringle |
| Collector number | 13047 |
| Country | Mexico |
| State | Hidalgo |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Hidalgo |
| Locality | near Metepec Station, 8300 feet. |
| Date Collected | 1904-06-22 |
| Elevation | 2529 m |
| Habitat | Dry mesas |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/f6f970da-d0ea-4746-98d4-5aa17aec6bd4 |
| Harvard University Herbaria Barcode | 00007337 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Eupatorium porriginosum B. L. Robinson |
| Verified by | D. E. Boufford (A) |
| Date Determined | 1982 |
| Taxon Reference | (for Eupatorium porriginosum B. L. Robinson) Contr. Gray Herb. 1925. 75: 11. |
| Family | Asteraceae |
| Determination | Ageratina porriginosa (B. L. Robinson) R. M. King & H. Robinson |
| Determined by | B. L. Turner (TEX) |
| Date Determined | 1987 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Eupatorium calaminthifolium Kunth |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
