| Classification | Pontederiaceae: Heteranthera |
| Harvard University Herbaria Barcode(s) | 01919093 |
| Collector | C. B. Hellquist & R. R. Haynes |
| Collector number | 12255 |
| 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 St. Mary's River, Sugar Island, ca. 10 miles SE of Sault St. 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/14268072-618f-45b8-b349-157d4085b2ea |
| Harvard University Herbaria Barcode | 01919093 |
| Herbarium | GH |
| Previous ownership | Ex Herbarium of Boston State College; Transferred from Massachusetts College of Liberal Arts Herbarium (NASC) |
| Family | Pontederiaceae |
| Determination | Heteranthera dubia MacMillan |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
