| Classification | Asteraceae: Eupatorium |
| Classification 1 | Asteraceae: Ageratina |
| Harvard University Herbaria Barcode(s) | 00007188 |
| Type Status | Holotype |
| Collector | C. G. Pringle |
| Collector number | 10097 |
| Country | Mexico |
| State | Durango |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Durango |
| Locality | Mesa de la Sandia, 10000 ft. |
| Date Collected | 1905-10-14 |
| Elevation | 3048 m |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3becb23f-53f6-485f-a4cf-458902f04019 |
| Harvard University Herbaria Barcode | 00007188 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Eupatorium durangense var. angustius B. L. Robinson |
| Verified by | D. E. Boufford (A) |
| Date Determined | 1981 |
| Taxon Reference | (for Eupatorium durangense var. angustius B. L. Robinson) Proc. Amer. Acad. Arts 1907. 43: 31. |
| Family | Asteraceae |
| Determination | Ageratina venulosa (A. Gray) King & H. Robinson |
| Determined by | B. L. Turner (TEX) |
| Date Determined | 1987 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Eupatorium durangense var. angustius B. L. Robinson |
| Determined by | B.L. Robinson |
| Family | Asteraceae |
| Determination | Eupatorium durangense var. angustius B. L. Robinson |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
