Ditremexa occidentalis (L.)Britton & Wilson Ditramexa occidentalisBritton & Rose Cassia planisiliquaL. Cassia occidentalis var. aristataCollad. Cassia occidentalis var. arista sensu Hassk., non DC. Cassia occidentalisL. Cassia occidentalis (L.)Rose Cassia obliquifoliaSchrank Cassia macradeniaCollad. Cassia laevigata sensu auct. Cassia foetidaPers. Cassia falcataL. Cassia ciliataRaf. Cassia carolinianaWalter