9. White Snake Root:
White snake is a deadliest plant mainly found in North America and is very poisonous, white snake is highly adaptive. This plant grows in wide variety of environment from shady regions to the open grounds, since 200 years white snake is harassing the human race.
Cattles loves to eat these plants and it mostly grows widely, in cattle grazing areas the growth of white snake is not allowed. The poisonous nature of white snake is only beneficial as an antidote for the snake bites.