| Classification | Asteraceae: Eupatorium |
| Classification 1 | Asteraceae: Ageratina |
| Classification 2 | Asteraceae: Eupatorium |
| Harvard University Herbaria Barcode(s) | 00007313 |
| Type Status | Isotype |
| Collector | H. L. Mason |
| Collector number | 1666 |
| Country | Mexico |
| State | Colima |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Colima |
| Locality | Socorro Island, Revillagigedo Islands. |
| Date Collected | 1925-05-08 |
| Habitat | Summit of island |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e3768688-64ae-4563-ab1f-0e7351b1b7c0 |
| Harvard University Herbaria Barcode | 00007313 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Eupatorium pacificum B. L. Robinson |
| Determined by | B.L. Robinson (GH) |
| Family | Asteraceae |
| Determination | Eupatorium pacificum B. L. Robinson |
| Determination Remarks | [is label name] |
| Family | Asteraceae |
| Determination | Ageratina pacifica (B. L. Robinson ex I. M. Johnston) King & H. Robinson |
| Determined by | R.M. King & H. Robinson |
| Date Determined | 1984 |
| Family | Asteraceae |
| Determination | Ageratina ciliata (Lessing) King & H. Robinson |
| Determined by | B. L. Turner (TEX) |
| Date Determined | 1987 |
| Determination Remarks | [is Current name] |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Eupatorium pacificum B. L. Robinson |
| Verified by | R. M. King & H. Robinson |
| Date Determined | 1987 |
| Taxon Reference | (for Eupatorium pacificum B. L. Robinson) Proc. Calif. Acad. Sci. 1931. 20: 99. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
