| Classification | Asteraceae: Senecio |
| Classification 1 | Asteraceae: Packera |
| Harvard University Herbaria Barcode(s) | 00012012 |
| Type Status | Holotype |
| Collector | H. H. Rusby |
| Collector number | 175 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona |
| Locality | [no additional data] |
| Date Collected | 1883 |
| Container | Flora of Arizona |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/2dcfc7ef-0fea-4097-b947-d5e67b3e4024 |
| Harvard University Herbaria Barcode | 00012012 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Senecio macropus Greenman |
| Determination Remarks | [filed under] |
| Taxon Reference | (for Senecio macropus Greenman) Ann. Missouri Bot. Gard. 1914. 1(3): 267. |
| Family | Asteraceae |
| Determination | Packera quercetorum (Greene) C. Jeffrey |
| Determined by | Trock, Debra Kay |
| Date Determined | 2019-03-** |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Senecio quercetorum Greene |
| Determined by | Greenman, Jesse More |
| Family | Asteraceae |
| Determination | Senecio macropus Greenman |
| Determined by | Greenman, Jesse More |
| Family | Asteraceae |
| Determination | Senecio arizonicus Greene |
| Determined by | [A. Gray (scripsit) W. T. Kittredge, 2019] |
| Annotation Text | Syn. Fl. N. Amer. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
