| Name | Cephaëlis tetragona Donnell Smith | 
| Authorship | Donnell Smith | 
| Rank | Species | 
| Placed in | Cephaëlis Swartz | 
| Citation | 1916 Bot. Gaz. 61(5): 376 | 
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Cephaëlis tetragona Donnell Smith | 
| Identification made in | [no date] (1), 2015 (2) |