1.  apple of peru(n = noun.plant) nicandra physaloides, shoo fly - coarse South American herb grown for its blue-and-white flowers followed by a bladderlike fruit enclosing a dry berry;
is a kind of herb, herbaceous plant
is a member of genus nicandra, nicandra

2.  apple of peru(n = noun.plant) common thorn apple, datura stramonium, jamestown weed, jimson weed, jimsonweed - intensely poisonous tall coarse annual tropical weed having rank-smelling foliage, large white or violet trumpet-shaped flowers and prickly fruits;
is a kind of thorn apple

adam's apple, american crab apple, apple, apple aphid, apple blight, apple butter, apple canker, apple dumpling, apple fritter, apple geranium, apple jelly, apple juice, apple maggot, apple mint, apple nut, apple of discord, apple orchard, apple pie, apple polisher, apple polishing, apple rust, apple sauce, apple tart, apple tree, apple turnover, balsam apple, balsam of peru, bell apple, big apple, blade apple, candied apple, candy apple, capital of peru, caramel apple, cherry apple, common thorn apple, cooking apple, crab apple, cultivated crab apple, custard apple, custard apple tree, dessert apple, eating apple, green apple aphid, iowa crab apple, jamaica apple, kai apple, kangaroo apple, kei apple, kei apple bush, love apple, mad apple, mammee apple, marvel of peru, may apple, oak apple, orchard apple tree, oregon crab apple, otaheite apple, peru, pitch apple, pond apple, prickly custard apple, republic of peru, rose apple, sea apple, siberian crab apple, sorb apple, sorb apple tree, southern crab apple, star apple, sugar apple, taffy apple, thorn apple, toffee apple, western crab apple, wild apple, woolly apple aphid