Some common edible herbs that are used in cooking ... The castor bean plant contains ricin, one of the most toxic substances known. Ingesting even a small amount of the beans can be fatal.

So here are the 9 most common poisonous plants that ... Similar to the moonseed plant, Nightshade looks like it has delicious, edible berries. DO NOT CONSUME them. The berries are highly poisonous ...

Other edible plants we typically call weeds include burdock, lamb’s quarter and common mallow. Utah State University ...