other kinds of plants are related to poison-ivy and poison sumac, those related
plants or some of their products may cause a similar dermatitis reaction in
sensitive people. If a person has been sensitized to poison-ivy, that person
may, in future, react to such things as the rind of the mango fruit, Japanese
lacquer, India marker ink, the oil from the cashew nut shell such as found on
some elaborate swizzle sticks, and the fruit pulp of the Ginkgo tree.