| Classification | Equisetaceae: Equisetum |
| Harvard University Herbaria Barcode(s) | 00709281 |
| Collector | H. S. Clark |
| Country | United States of America |
| State | Connecticut |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Connecticut: Hartford County: Hartford |
| Locality | Hartford |
| Date Collected | 1907-08-07 [August 7. 1907] |
| Project | New England Vascular Plants TCN |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/221d0c7d-dea0-4a7d-9282-08d8d8acf872 |
| Harvard University Herbaria Barcode | 00709281 |
| Herbarium | GH |
| Family | Equisetaceae |
| Determination | Equisetum ×mackaii (Newm.) Brichan |
| Determination Remarks | [is filed under name] [is Current name] |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
