Mid Autumn Festival

 Water caltrop also aptly referred to as "devil pod", and is borne by two species of floating aquatic plants, native to Eurasia and Africa. Most interestingly, like other water plants, it may play a role in transmitting a disease known as Fasciolopsiasis. During the metacercarial stage in their life cycle, the larval flukes leave their water snail hosts, and swim away to form cysts on the surfaces of water plants, including the leaves and fruit of water caltrops. If infected water plants are consumed raw or undercooked, the flukes can infect pigs, humans and other animals.