What are the poisonous flowers?

Nerium indicum is a very powerful plant. It is arguably the most famous poisonous flower in the world. Its branches, leaves and bark all contain oleanolide, which will be poisoned if eaten by mistake. Of course, if we touch its leaves and smell its flowers, there is no problem. It has a lot of flowers and a very rich fragrance. Many people keep it at home, but some children must avoid eating it by mistake.