| Name | Equisetum laevigatum f. caespitosum A. A. Eaton |
| Authorship | A. A. Eaton |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Equisetum laevigatum A. Brown |
| GUID | urn:lsid:ipni.org:names:92969-2 |
| Citation | 1903 Fern Bull. 11: 43 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Equisetum laevigatum f. caespitosum A. A. Eaton |
| Identification made in | [no date] (1), 1947 (1) |
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