There are many dangers on our planet: deadly swamps, extreme temperatures, carnivores, venomous insects... And sometimes even plants can be dangerous too! Yes, you heard right: there are many plants that seem absolutely harmless, while they are actually really dangerous. Some of them are even used as decorative plants, which is why they can sometimes be found on the windowsill or flowerbed. It works both ways - what may seem as unnecessary weed is, in fact, an incredibly useful plant with a lot of vitamins and various microelements. But how do you know a useful plant from a deadly one? Well, our today's video will help you figure it out.