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| Family | Asteraceae |
| Basionym | Eupatorium dolichobasis McVaugh |
| Original Identification | Eupatorium dolichobasis McVaugh |
| Current Taxon | Eupatorium dolichobasis McVaugh |
| Protologue Citation | Contributions from the University of Michigan Herbarium 9(4): 395, f. 14. 1972. |
| Holotype/Isotype | Isotype |
| DUKE Accession Number | 232751 |
| Comments | |
| Primary Collector | Rogers McVaugh |
| Collector Number | 23476 |
| Collection Date | 3-4 Apr 1965 |
| Country | Mexico |
| Province/State | Jalisco |
| Plant Location Notes | Headwaters of Rio Mascota [20-25 km., airline, southeast of Talpa de Allende]; narrow valley of steep mountain stream ascending to the west from a point 12-13 km. above (south of) El Rincon, on the road to Aserradero La Cumbre; humid forest of Podocarpus, with Abies, Tilia, Prunus, Meliosma, Quercus; elevation 1700-1900 m. |
| Plant Description Notes | Very abundant, the common herbaceous plant in the barranca forest. Herb 1-1.5 m. high; flowers white. |
| DUKE Barcode | |
| Broad geographical location | North America |
