| Name | Selaginella effusa Alston |
| Authorship | Alston |
| Rank | Species |
| Placed in | Selaginella P. Beauvois |
| Citation | 1932 J. Bot. 70(831): 65–66 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Selaginella effusa Alston |
| Identification made in | 1988 (1), 2005 (1), 2015 (1) |