| Classification | Pontederiaceae: Heteranthera |
| Barcode(s) | 01919103 |
| Collector | C. B. Hellquist & R. R. Haynes |
| Collector number | 10887 |
| Country | United States of America |
| State | Michigan |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Michigan: Cheboygan County |
| Locality | north end of Monroe Lake, 3.0 miles west of Weadock, Monro Twp. SW 1/4, Sec. 4, T37N, R3W |
| Date Collected | 1975-08-12 |
| Habitat | pH 9.5. alkalinity 66.0 mg/l |
| Container | Flora of Michigan |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/ffe39f0b-411f-4cc6-87c6-3cf6496ffdfa |
| Harvard University Herbaria Barcode | 01919103 |
| Herbarium | GH |
| Previous ownership | Ex Herbarium of 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 |
