| Classification | Asteraceae: Eupatorium |
| Classification 1 | Asteraceae: Chromolaena |
| Harvard University Herbaria Barcode(s) | 00007954 |
| Type Status | Isotype |
| Collector | T. Rojas |
| Collector number | 10103 |
| Country | Paraguay |
| State | Amambay |
| Geography | South America: South America (Region) (Region): Paraguay: Amambay |
| Locality | Sierra de Amambay |
| Date Collected | 1907-01-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/b2a38032-a3f9-4f0e-8ac5-e0cf6d834e4f |
| Harvard University Herbaria Barcode | 00007954 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Eupatorium rojasii Hassler |
| Verified by | D. E. Boufford (A) |
| Date Determined | 1982 |
| Taxon Reference | (for Eupatorium rojasii Hassler) Repert. Spec. Nov. Regni Veg. 1912. 11: 168. |
| Family | Asteraceae |
| Type Status | Isotype |
| Isotype of | Eupatorium rojasii Hassler |
| Verified by | R.M. King & H. Robinson (GH) |
| Date Determined | 1977 |
| Taxon Reference | (for Eupatorium rojasii Hassler) Repert. Spec. Nov. Regni Veg. 1912. 11: 168. |
| Family | Asteraceae |
| Determination | Chromolaena rojasii (Hassler) King & H. Robinson |
| Determined by | R.M. King & H. Robinson |
| Date Determined | 1977 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Eupatorium rojasii Hassler |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
