Ceratophyllum demersum L.
Ceratophyllaceae
| Collection Number | Mansfield, D 08-530 |
| Collectors | |
| Identified By | D. Mansfield |
| Source | C. Davidson |
| Date | 16 July 2008 |
| Country | USA |
| state | Oregon |
| county | Malheur |
| Location | Owyhee River near Three Forks |
| Lat/Long | N 42 31 48.9 W 117 11 03.4 |