| Classification | Haloragaceae: Myriophyllum |
| Barcode(s) | 01626842 |
| Collector | C. B. Hellquist & L. Crouch |
| Collector number | 12991 |
| Country | United States of America |
| State | Oklahoma |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Oklahoma: Johnston County |
| Locality | 2.5 miles NE of Reagan, SE 1/4 Sec. 18, T2S, R6E |
| Date Collected | 1978-07-17 |
| Habitat | Big Spring at the headwaters of Spring Creek |
| Container | Flora of Oklahoma |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/7aacac23-44ff-4f4b-9510-4634a2d35115 |
| Harvard University Herbaria Barcode | 01626842 |
| Herbarium | GH |
| Previous ownership | [ex] Herbarium of Boston State College, Boston, Massachusetts; Transferred from Massachusetts College of Liberal Arts Herbarium (NASC) |
| Family | Haloragaceae |
| Determination | Myriophyllum heterophyllum Michaux |
| Determination Remarks | [filed under] [current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
