| Classification | Asteraceae: Eupatorium | 
| Harvard University Herbaria Barcode(s) | 00007732 | 
| Type Status | Isosyntype | 
| Collector | E. Hassler | 
| Collector number | 9205 | 
| Country | Paraguay | 
| State | CaaguazĂș | 
| Geography | South America: South America (Region) (Region): Paraguay: CaaguazĂș | 
| Locality | In viciniis CaaguazĂș | 
| Date Collected | 1905-03-** | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/e5874c62-5b82-4486-a946-5899a08211db | 
| Harvard University Herbaria Barcode | 00007732 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Type Status | Isosyntype | 
| Isosyntype of | Eupatorium ivaefolium var. hirsutum Hassler | 
| Verified by | D. E. Boufford (A) | 
| Date Determined | 1982 | 
| Taxon Reference | (for  Eupatorium ivaefolium var. hirsutum Hassler) Repert. Spec. Nov. Regni Veg. 1916. 14: 280. | 
| Family | Asteraceae | 
| Determination | Eupatorium ivaefolium var. hirsutum Hassler | 
| Determination Remarks | [label name] [current name] | 
| Sex | not determined | 
| Phenology | Flower | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |