Which of these is one of the most toxic flowers in the world?

While the other three are all non-toxic varieties, Nerium oleander is regarded as the most poisonous flower in the world. From the stem to it's sap, every part of this flower is very dangerous - Even inhaling smoke from a burning oleander flower is very risky.

Asked by Rachel Bortles · Last updated 5 years ago · 3.1K views · SOURCE