8 Most Poisonous Plants in the World Nursery Live
8 Most Poisonous Plants in the World Plants have been used as a source of nourishment (their fruits and some leaves) and as a treatment for ailments since ancient times. Prior to technological advancement, humans had to distinguish the benefits of each individual by experimentation with themselves and putting their own lives at danger, as intake of certain plants can be fatal. Plants may appear to be harmless, but they can contain many of the most lethal poisons known. Poisonous plants have indeed been responsible for human deaths across history, from Socrates\' death from poison hemlock to toddlers accidentally ingesting deadly nightshade. Even with so much scientific advancement, there are still poisonous plants, and here is a list of plants to be aware of. 1. Oleander Nerium