| Classification | Pontederiaceae: Heteranthera |
| Harvard University Herbaria Barcode(s) | 01919106 |
| Collector | C. B. Hellquist & R. R. Haynes |
| Collector number | 12175 |
| Country | United States of America |
| State | Michigan |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan: Ogemaw County |
| Locality | eastern end of Hardwood Lake ca. 12.0 E-SE of West Branch NW 1/4, Sec. 6, T21N, R4E |
| Date Collected | 1977-07-08 |
| Habitat | pH 8.1; alkalinity 136.0 mg/l |
| Container | Flora of Michigan |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/41c590c7-9318-4818-b2b3-f21518080bec |
| Harvard University Herbaria Barcode | 01919106 |
| 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 | [filed under] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
