| Classification | Perezia |
| Classification 1 | Acourtia |
| Harvard University Herbaria Barcode(s) | 00022769 |
| Type Status | Isotype, Holotype |
| Collector | Fr. Nil |
| Collector number | 55 |
| Country | Mexico |
| State | Coahuila |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Coahuila |
| Locality | Saltillo |
| Date Collected | 1908-12-** |
| Elevation | 1650 - 1800 m |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/5db6d6af-4920-4fc6-b37a-a003c372bee3 |
| Harvard University Herbaria Barcode | 00022769 |
| Herbarium | GH |
| Type Status | Isotype |
| Isotype of | Perezia aspera Bacigalupi |
| Verified by | B. L. Turner (LL/TEX) |
| Date Determined | 1992 |
| Determination Remarks | "Type, Gr." in protologue |
| Taxon Reference | (for Perezia aspera Bacigalupi) Contr. Gray Herb. 1931. 97: 18. |
| Type Status | Holotype |
| Holotype of | Perezia aspera Bacigalupi |
| Verified by | L. Cabrera Rodriguez (TEX) |
| Date Determined | 1992 |
| Determination Remarks | "Type, Gr." in protologue |
| Taxon Reference | (for Perezia aspera Bacigalupi) Contr. Gray Herb. 1931. 97: 18. |
| Determination | Acourtia purpusii (Brandegee) Reveal & R. M. King |
| Determined by | L. Cabrera Rodriguez (TEX) |
| Determination Remarks | [current name] |
| Determination | Acourtia purpusii (Brandegee) Reveal & R. M. King |
| Determined by | B. L. Turner (LL/TEX) |
| Date Determined | 1993 |
| Determination | Perezia aspera Bacigalupi |
| Determined by | R. C. Bacigalupi (GH) |
| Date Determined | 1931 |
| Annotation Text | sp. nov. |
| Determination | Perezia |
| Determination Remarks | [label name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
