| Classification | Asteraceae: Guardiola | 
| Harvard University Herbaria Barcode(s) | 00008466 | 
| Type Status | Holotype | 
| Collector | Edw. Palmer | 
| Collector number | 360 | 
| Country | Mexico | 
| State | Jalisco | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Jalisco | 
| Locality | Tequila | 
| Date Collected | 1886-09-** | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/8f3f1349-1d59-4ced-a9c0-d832484de27f | 
| Harvard University Herbaria Barcode | 00008466 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Type Status | Holotype | 
| Holotype of | Guardiola tulocarpus var. angustifolia A. Gray | 
| Verified by | K. Gandhi (GH) | 
| Date Determined | 2008-01-17 | 
| Taxon Reference | (for  Guardiola tulocarpus var. angustifolia A. Gray) Proc. Amer. Acad. Arts 1887. 22: 423. | 
| Family | Asteraceae | 
| Type Status | Holotype | 
| Holotype of | Guardiola mexicana var. angustifolia A. Gray | 
| Verified by | V. M. Bates (A/GH) | 
| Date Determined | 1983 | 
| Determination Remarks | Collation on annotation label is incorrect (22: 243) | 
| Taxon Reference | (for  Guardiola mexicana var. angustifolia A. Gray) Proc. Amer. Acad. Arts 1887. 22: 423. | 
| Family | Asteraceae | 
| Determination | Guardiola angustifolia (A. Gray) B. L. Robinson | 
| Determined by | P. Van Faasen (MSC) | 
| Date Determined | 1970-10-** | 
| Determination Remarks | [current name] | 
| Family | Asteraceae | 
| Determination | Guardiola mexicana var. angustifolia A. Gray | 
| Determination Remarks | [label name] | 
| Family | Asteraceae | 
| Determination | Guardiola angustifolia (A. Gray) B. L. Robinson | 
| Determined by | B. L. Robinson (GH) | 
| Annotation Text | type | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |