| Name | Equisetum hyemale var. affine (Engelmann) A. A. Eaton |
| Authorship | (Engelmann) A. A. Eaton |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Equisetum hyemale Linnaeus |
| GUID | urn:lsid:ipni.org:names:1074180-2 |
| Holdings | 260 Specimens held in the Harvard University Herbaria identified as Equisetum hyemale var. affine (Engelmann) A. A. Eaton |
| Identification made in | [no date] (259), 2017 (1) |
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