| Name | Myosotis macrosperma Engelmann |
| Authorship | Engelmann |
| Rank | Species |
| Placed in | Myosotis Linnaeus |
| Citation | 1844 Amer. J. Sci. Arts 46(1): 98 |
| Holdings | 148 Specimens held in the Harvard University Herbaria identified as Myosotis macrosperma Engelmann |
| Identification made in | [no date] (131), 1941 (2), 2025 (15) |