| Classification | Asteraceae: Haplopappus | 
| Classification 1 | Asteraceae: Rayjacksonia | 
| Harvard University Herbaria Barcode(s) | 00008695 | 
| Type Status | Isotype | 
| Collector | J. L. Berlandier | 
| Collector number | 2278 | 
| Country | Mexico | 
| State | Tamaulipas | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Tamaulipas | 
| Locality | De San Fernando a Matamoros | 
| Date Collected | 1830-10-** | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/58de6191-4c2a-4763-8498-770e82b02118 | 
| Harvard University Herbaria Barcode | 00008695 | 
| Herbarium | GH | 
| Family | Asteraceae | 
| Type Status | Isotype | 
| Isotype of | Haplopappus phyllocephalus de Candolle | 
| Verified by | D. E. Boufford | 
| Taxon Reference | (for  Haplopappus phyllocephalus de Candolle) Prodr. [A. P. de Candolle] 1836. 5: 347. | 
| Family | Asteraceae | 
| Determination | Rayjacksonia phyllocephala (de Candolle) R. L. Hartman & M. A. Lane | 
| Determination Remarks | [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |