| Classification | Asteraceae: Eupatorium |
| Harvard University Herbaria Barcode(s) | 00007217 |
| Type Status | Holotype |
| Collector | E. T. Heyde & E. Lux |
| Collector number | 3427 |
| Country | Guatemala |
| State | Santa Rosa |
| Geography | North America: Central America (Region): Guatemala: Santa Rosa |
| Locality | Rio de Las Cañas, 2500 ft. |
| Date Collected | 1892-03-** |
| Elevation | 762 m |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e89df01d-fbf5-41c1-9437-0e8c1ac8cedf |
| Harvard University Herbaria Barcode | 00007217 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Eupatorium heydeanum B. L. Robinson |
| Verified by | B. L. Turner (TEX) |
| Date Determined | 1982 |
| Taxon Reference | (for Eupatorium heydeanum B. L. Robinson) Proc. Amer. Acad. Arts 1900. 35: 335. |
| Family | Asteraceae |
| Determination | Eupatorium heydeanum B. L. Robinson |
| Determined by | B.L. Robinson (GH) |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Eupatorium ehrenbergii Hemsley |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
