| Name | Eriastrum densifolium subsp. elongatum (Bentham) H. Mason |
| Authorship | (Bentham) H. Mason |
| Rank | Subspecies |
| NomenclaturalStatus | NomLeg |
| Placed in | Eriastrum densifolium (Bentham) H. Mason |
| Holdings | 23 Specimens held in the Harvard University Herbaria identified as Eriastrum densifolium subsp. elongatum (Bentham) H. Mason |
| Identification made in | [no date] (21), 2010 (2) |