| Name | Elatine americana (Pursh) Arnott |
| Authorship | (Pursh) Arnott |
| Rank | Species |
| Placed in | Elatine Linnaeus |
| Holdings | 35 Specimens held in the Harvard University Herbaria identified as Elatine americana (Pursh) Arnott |
| Identification made in | [no date] (26), 1902 (1), 1969 (1), 1985 (2), 1987 (2), 2013 (3) |