- horse cassia, Cassia roxburghii, Cassia marginata - East Indian tree having long pods containing a black cathartic pulp used as a horse medicine
--1 is a kind of cassia
- pink shower, pink shower tree, horse cassia, Cassia grandis - tropical American semi-evergreen tree having erect racemes of pink or rose-colored flowers; used as an ornamental
--2 is a kind of cassia