| Classification | Asteraceae: Senecio | 
| Harvard University Herbaria Barcode(s) | 00011885 | 
| Type Status | Possible Type | 
| Collector | C. F. Baker | 
| Collector number | 711 | 
| Country | United States of America | 
| State | Colorado | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Colorado: Archuleta County | 
| Locality | Pagosa Springs | 
| Date Collected | 1899-07-27 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ece0a995-6301-4ef8-aff8-312d6543ddfd | 
| Harvard University Herbaria Barcode | 00011885 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Type Status | Possible Type | 
| Possible Type of | Senecio milleflorus Greene | 
| Taxon Reference | (for  Senecio milleflorus Greene) Pittonia 1900. 4: 116. | 
| Family | Asteraceae | 
| Determination | Senecio atratus Greene | 
| Determined by | T. M. Barkley | 
| Determination Remarks | [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |