| Name | Cojoba arborea var. angustifolia (Rusby) Barneby & J. W. Grimes |
| Authorship | (Rusby) Barneby & J. W. Grimes |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Cojoba arborea (Linnaeus) Britton & Rose |
| GUID | urn:lsid:ipni.org:names:996934-1 |
| Citation | 1997 Alt. title: Silk Tree, Guanacaste, Mem. New York Bot. Gard. 74(2): 44 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Cojoba arborea var. angustifolia (Rusby) Barneby & J. W. Grimes |
| Identification made in | [no date] (2) |