Securidaca ecristata Wurdack, Mem. N. Y. Bot. Gard. 9: 351. 1957. Non S. ecristata Kassau, Beitr. Syst. Polyg. Gatt. Ber. Vork. Saponin 37. 1931 (Dissertation, Berlin) ; Fedde Rep. 35: 160. 1934.
Steyermark 97858 (US, VEN), from Cerro Jaua, Bolívar, Venezuela, has tentatively been referred to S. cacumina; the Jaua collection shows slightly larger and proportionately somewhat narrower leaf-blades than the Huachamacari specimens, but has only old inflorescences (the fruit apparently lost after collection).