| Classification | Asteraceae: Senecio |
| Harvard University Herbaria Barcode(s) | 00274867 |
| Type Status | Holotype |
| Collector | C. G. Pringle |
| Collector number | 316 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona |
| Locality | Valley of the Santa Cruz R. [River] |
| Date Collected | 1881-05-11 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/44c14cd9-3fdf-4ad4-8874-eb98de543f8a |
| Harvard University Herbaria Barcode | 00274867 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Senecio filicifolius Greenman |
| Verified by | K. Mauz (ARIZ) |
| Date Determined | 2009-04-14 |
| Taxon Reference | (for Senecio filicifolius Greenman) Ann. Missouri Bot. Gard. 1914. 1: 274. |
| Family | Asteraceae |
| Determination | Senecio flaccidus var. monoensis (Greene) B. L. Turner & T. M. Barkley |
| Determined by | T. M. Barkley (BRIT) |
| Date Determined | 2000-04-** |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Senecio douglasii de Candolle |
| Determined by | A. Gray |
| Determination Remarks | [A. Gray (scripsit)] [label name] |
| Annotation Text | var. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
| Item Remarks | [mounteed with non-type specimen of Toumey 708, 274868] |