Is there a study of plants that are safe vs. toxic?

couple of new books on gardening utilized the wealth of food Tip four: question of these several stars .? Is there a study of plants that are secure to toxic I am curious if it. A scientific study of a certain location of ​​the plant in nature there is such a diverse selection of fungi, plants, mosses ... there are all kinds of books on edible plants or plants vs. toxic for organic treatments and medicines, I am not seeking for books on gardening berries and tomatoes Very best answer:.

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