What makes deadly plants deadly? Toxic substances in only small amounts that can lead to a compelte heart stop or the brain to simply block. not a great picture.
Some of the deadly plants are: Gympie Stinging Tree, Giant Hogweed, Angel’s Trumpet or Castor Oil Plant. They all kill humans due to the toxic substances (usually neurotoxins) like moroidin, tropane alcaloid, tremetol or ricin.
How to protect yourself from such plants? Simply don’t touch or eat plants that are not sold in your local market 😀