| Classification | Betulaceae: Alnus | 
| Harvard University Herbaria Barcode(s) | 00033675 | 
| Type Status | Type | 
| Collector | A. A. D. Dugès | 
| Country | Mexico | 
| State | Guanajuato | 
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Guanajuato | 
| Date Collected | 1901 | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/6d7bb430-9b23-4d99-912d-b7c591ab9d5e | 
| Harvard University Herbaria Barcode | 00033675 | 
| Herbarium | GH | 
| Family | Betulaceae | 
| Type Status | Type | 
| Type of | Alnus jorullensis var. exigua Fernald | 
| Taxon Reference | (for  Alnus jorullensis var. exigua Fernald) Proc. Amer. Acad. Arts 1904. 40: 27. | 
| Family | Betulaceae | 
| Determination | Alnus jorullensis subsp. lutea Furlow | 
| Determined by | J. J. Furlow | 
| Determination Remarks | [current name] | 
| Sex | not determined | 
| Phenology | Fruit | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |