| Classification | Equisetaceae: Equisetum |
| Harvard University Herbaria Barcode(s) | 00674516 |
| Type Status | Syntype |
| Collector | A. A. Eaton |
| Collector number | 47 |
| Country | United States of America |
| State | Massachusetts |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Essex County: Amesbury |
| Date Collected | 1897-05-30 [May 30, 1897] |
| Habitat | Sandy pools ["Deep recently deposited sandbanks of Merrimack River . . . In and about little pools of water"; from protologue] |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/1c654c7e-5446-4ad6-a0e1-c48acc972a4e |
| Harvard University Herbaria Barcode | 00674516 |
| Herbarium | GH |
| Previous ownership | Fern Bulletin Distribution. [Ex] Herbarium of Alvah A. Eaton Purchased by the Gray Herbarium, 1909 |
| Family | Equisetaceae |
| Determination | Equisetum fluviatile var. intermedium A. A. Eaton |
| Determination Remarks | [is label name] |
| Family | Equisetaceae |
| Determination | Equisetum fluviatile Linnaeus |
| Determined by | Kittredge, Walter Tobey |
| Date Determined | 2024 |
| Determination Remarks | [0] [is Current name] |
| Family | Equisetaceae |
| Type Status | Syntype |
| Syntype of | Equisetum fluviatile var. intermedium A. A. Eaton |
| Verified by | Kittredge, Walter Tobey |
| Date Determined | 2024 |
| Determination Remarks | [is filed under name] |
| Annotation Text | = E. fluviatile |
| Taxon Reference | (for Equisetum fluviatile var. intermedium A. A. Eaton) Working List N. Amer. Pterid. 1901. 8: 26. |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
