Show livestock endangered by poisonous plants part of the annual loss of livestock from poisonous plants can be prevented by avoiding overgrazing and by furnishing plenty of supplemental feed during periods of scarce pasture according to L V sherwood assistant chief of crop production at the university of illinois college of agriculture these poisonous plants are in fence corners in pastures and in the hay fields often unrecognized until after they have poisoned the animals human beings as well as animals may die from the effect of the plants other poisonous plants are bull nettle buttercup wild cherry cocklebur corn cockle tall crowfoot Dutch mans breeches water hemlock common horsetail indian turnip jack jackin in the th pulpit jimson weed veed johnson grass dwarf larkspur black locust whorled milkweed black nighal nightshade oak poke berry and ger weed I 1 |