| Classification | Equisetaceae: Equisetum | 
| Harvard University Herbaria Barcode(s) | 00694309 | 
| Collector | F. W. Hunnewell | 
| Collector number | 3900 | 
| Country | United States of America | 
| State | Massachusetts | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Massachusetts: Middlesex County: Natick | 
| Locality | Natick | 
| Date Collected | 1915-09-02 [Sept 2, 1915] | 
| Habitat | woods | 
| Project | New England Vascular Plants TCN | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/a644c26d-e66f-42f3-9cf7-0a7d18f3449f | 
| Harvard University Herbaria Barcode | 00694309 | 
| Herbarium | NEBC | 
| Family | Equisetaceae | 
| Determination | Equisetum hyemale var. affine (Engelmann) A. A. Eaton | 
| Determination Remarks | [filed under] [current name] | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |