Sphaerocardamum divaricatum (Rollins) Rollins in Contr. Gray Herb. 213: 16. 1984 sec. Rollins 1993
- ≡Cibotarium divaricatum Rollins in Contr. Dudley Herb. 3: 189. 1941 syn. sec. Bailey & al. 2007
- =Cibotarium macropetalum Rollins in Contr. Dudley Herb. 3: 190. 1941 syn. sec. Bailey & al. 2007
- =Sphaerocardamum macropetalum (Rollins) Rollins in Contr. Gray Herb. 213: 16. 1984 syn. sec. Bailey & al. 2007