| Classification | Asteraceae: Perezia |
| Classification 1 | Asteraceae: Acourtia |
| Harvard University Herbaria Barcode(s) | 00022814 |
| Type Status | Holotype |
| Collector | G. Thurber |
| Collector number | 939 |
| Country | Mexico |
| State | Sonora |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Sonora: Santa Cruz |
| Locality | Santa Cruz |
| Date Collected | 1851-09-** |
| Habitat | Rocky hills |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3a84ff65-4b34-4a9a-ba47-ba0939fd72f1 |
| Harvard University Herbaria Barcode | 00022814 |
| Herbarium | GH |
| Family | Asteraceae |
| Type Status | Holotype |
| Holotype of | Perezia thurberi A. Gray |
| Verified by | V. M. Bates (A/GH) |
| Date Determined | 1983 |
| Taxon Reference | (for Perezia thurberi A. Gray) Mem. Amer. Acad. Arts 1855. 5: 324. |
| Family | Asteraceae |
| Determination | Acourtia mexicana (Lagasca ex D. Don) H. Robinson |
| Determined by | L. Cabrera Rodriguez (TEX) |
| Date Determined | 2001 |
| Determination Remarks | [current name] |
| Family | Asteraceae |
| Determination | Acourtia thurberi (A. Gray) Reveal & R. M. King |
| Determined by | B. L. Turner (TEX) |
| Date Determined | 1993 |
| Family | Asteraceae |
| Determination | Perezia thurberi A. Gray |
| Determined by | A. Gray |
| Determination Remarks | [A. Gray (scripsit)] [label name] |
| Annotation Text | n. sp. |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
