| Classification | Asteraceae: Eupatorium |
| Harvard University Herbaria Barcode(s) | 00007402 |
| Type Status | Holotype |
| Collector | Edw. Palmer |
| Collector number | 755 |
| Country | Mexico |
| State | Durango |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Durango |
| Locality | City of Durango and vicinity |
| Date Collected | 1896-11-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/fe796c64-6d90-4260-9cca-734387bebeab |
| Harvard University Herbaria Barcode | 00007402 |
| Herbarium | GH |
| Family | Asteraceae |
| Determination | Eupatorium occidentale var. arizonicum A. Gray |
| Determination Remarks | [is label name] |
| Family | Asteraceae |
| Determination | Eupatorium thyrsiflorum var. holoclerum B. L. Robinson |
| Determined by | B.L. Robinson (GH) |
| Determination Remarks | [is Current name] |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Eupatorium thyrsiflorum var. holoclerum B. L. Robinson |
| Verified by | D. E. Boufford (A) |
| Date Determined | 1982 |
| Taxon Reference | (for Eupatorium thyrsiflorum var. holoclerum B. L. Robinson) Proc. Amer. Acad. Arts 1907. 43: 36. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
