It is home to highly endangered species "Pterocarpus santalinus" the Rakta chandana and "Gloriosa superba". Gloriosa superba is a species of flowering plant in the family Colchicaceae. Colchicine may be purified from "Colchicum autumnale" (autumn crocus) or "Gloriosa superba" (glory lily). The symbol for "Maaveerar Naal" is the karthigaipoo (Gloriosa superba), which blooms during November. "Gloriosa superba" is the national flower of Zimbabwe (where it is a protected plant).