| Classification | Haloragaceae: Myriophyllum |
| Harvard University Herbaria Barcode(s) | 01626844 |
| Collector | C. B. Hellquist & L. Crouch |
| Collector number | 12577 |
| Country | United States of America |
| State | Oklahoma |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Oklahoma: Johnston County |
| Locality | Upper Pennington Creek at Crossville-Mill Creek Road Bridge, Sec. 34, T1S, R5E |
| Date Collected | 1978-06-10 |
| Container | Flora of Oklahoma |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/135e9c87-1f53-4fb5-a5a9-aa94064b4cfc |
| Harvard University Herbaria Barcode | 01626844 |
| 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 |
| Determined by | Michael L. Moody |
| Date Determined | 2003 |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
