| Classification | Asteraceae: Actinella |
| Classification 1 | Asteraceae: Hymenoxys |
| Classification 2 | Asteraceae: Actinea |
| Harvard University Herbaria Barcode(s) | 00002378 |
| Type Status | Lectotype, Holotype |
| Collector | Edw. Palmer |
| Collector number | 260 |
| Country | United States of America |
| State | Arizona |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Arizona |
| Locality | Mokiak Pass, Southeast of St. George (Utah?) |
| Date Collected | 1877 |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/da2942bd-3ee6-41c2-93d7-b0af51a2b949 |
| Harvard University Herbaria Barcode | 00002378 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Lectotype |
| Lectotype of | Actinella biennis A. Gray |
| Verified by | M. W. Bierner |
| Date Determined | 1991 |
| Taxon Reference | (for Actinella biennis A. Gray) Proc. Amer. Acad. Arts 1878. 13: 373. |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Actinella biennis A. Gray |
| Verified by | Bates, Vernon M. |
| Date Determined | 1985 |
| Annotation Text | "n. sp." by Gray |
| Taxon Reference | (for Actinella biennis A. Gray) Proc. Amer. Acad. Arts 1878. 13: 373. |
| Family | Asteraceae |
| Determination | Hymenoxys cooperi (A. Gray) Cockerell |
| Determined by | M. W. Bierner |
| Date Determined | 1991 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Actinea cooperi (A. Gray) Kuntze |
| Determined by | Parker, Kittie Fenley |
| Date Determined | 1941-04-** |
| Family | Asteraceae |
| Determination | Actinea biennis (A. Gray) Kuntze |
| Determined by | B. L. R. [Benjamin Lincoln Robinson] |
| Date Determined | 1911 |
| Annotation Text | Nomencl. Rev. Acc. To Internat. Rules |
| Family | Asteraceae |
| Determination | Actinella biennis A. Gray |
| Determination Remarks | [label name] |
| Annotation Text | n. sp. |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
