| Name | Isomeris arborea var. angustata Parish |
| Authorship | Parish |
| Rank | Variety |
| Placed in | Isomeris arborea Nuttall ex Torrey & A. Gray |
| GUID | urn:lsid:ipni.org:names:77089954-1 |
| Holdings | 11 Specimens held in the Harvard University Herbaria identified as Isomeris arborea var. angustata Parish |
| Identification made in | [no date] (10), 1914 (1) |
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