| Classification | Plantaginaceae: Callitriche |
| Harvard University Herbaria Barcode(s) | 00466776 |
| Collector | C. B. Hellquist & L. Crouch |
| Collector number | 12989 |
| Country | United States of America |
| State | Oklahoma |
| Geography | North America: North America (CA, US, MX) (Region): United States of America: Oklahoma: Johnston County |
| Locality | Big Springs at the headwaters of Spring Creek, 2.5 miles NE of Reagan, SE1/4 Sec. 18, T2S, R6E |
| Date Collected | 1978-06-17 |
| Container | Flora of Oklahoma |
| Project | US and Canada - Mass Digitization |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/3c4fc424-b1cb-4626-ae5e-172e2cd4e3a6 |
| Harvard University Herbaria Barcode | 00466776 |
| Herbarium | GH |
| Previous ownership | [ex] Herbarium of Boston State College Boston, Massachusetts; Transferred from Massachusetts College of Liberal Arts Herbarium (NASC) |
| Family | Plantaginaceae |
| Determination | Callitriche heterophylla Pursh |
| Determination Remarks | [is filed under name] [is Current name] |
| Sex | not determined |
| Phenology | NotDetermined |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
