| Classification | Alismataceae: Sagittaria | 
| Harvard University Herbaria Barcode(s) | 01632442 | 
| Collector | C. B. Hellquist & R. R. Haynes | 
| Collector number | 12257 | 
| Country | United States of America | 
| State | Michigan | 
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan: Chippewa County | 
| Locality | Duck Lake-Lake George of the St. Mary's River, Sugar Island, ca. 10 mi SE of Sault Ste. Marie. Sec. 26, T47N, R2E | 
| Date Collected | 1977-07-18 | 
| Habitat | pH 8.6, alkalinity 54.0 mg/l | 
| Container | Flora of Michigan | 
| Project | US and Canada - Mass Digitization | 
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/75b18337-69fe-4605-a4d9-ce4d939ba5ac | 
| Harvard University Herbaria Barcode | 01632442 | 
| Herbarium | GH | 
| Previous ownership | Ex Herbarium Boston State College; Transferred from Massachusetts College of Liberal Arts Herbarium (NASC) | 
| Family | Alismataceae | 
| Determination | Sagittaria graminea Michaux | 
| Determination Remarks | [filed under] [current name] | 
| Sex | not determined | 
| Phenology | NotDetermined | 
| Preparation Type | Sheet | 
| Preparation Method | Pressed |