| Classification | Asteraceae: Eupatorium | 
| Classification 1 | Asteraceae: Ageratina | 
| Barcode(s) | 00007271 | 
| Type Status | Holotype | 
| Collector | J. G. Schaffner | 
| Collector number | 351 | 
| Country | Mexico | 
| State | San Luis Potosà | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: San Luis Potosà | 
| Locality | Ravine in montibus frigid: prope S. Miguel | 
| Date Collected | 1876-08-** | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2c97854e-05cf-47bd-9d6a-309a66a03ce7 | 
| Harvard University Herbaria Barcode | 00007271 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Type Status |  Holotype | 
| Holotype of |  Eupatorium mygindaefolium A. Gray | 
| Verified by | D. E. Boufford (A) | 
| Date Determined | 1981 | 
| Determination Remarks | (San Luis Potosi, high mountains near San Miguel, J. G. Schaffner, August 1976) | 
| Taxon Reference | (for  Eupatorium mygindaefolium A. Gray) Proc. Amer. Acad. Arts 1881. 16: 101. | 
| Family | Asteraceae | 
| Determination |  Ageratina mygindaefolia (A. Gray) King & H. Robinson | 
| Determined by | B. L. Turner (TEX) | 
| Date Determined | 1987 | 
| Determination Remarks |  [current name] | 
| Family | Asteraceae | 
| Determination |  Eupatorium mygindaefolium A. Gray | 
| Determination Remarks |  [label name] | 
| Annotation Text | n. sp. | 
| Family | Asteraceae | 
| Determination |  Eupatorium mygindaefolium A. Gray | 
| Determined by | B. L. Robinson (GH) | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed | 
| Item Remarks | "Corresponding number of identical material of Schaffner coll. in 1879 and distrib. from Vigener Herb. = 775 (in Hb. Berol.)" pencilled on sheet |