The deep pocket of the lady slipper orchid traps a bee for a short time, so it
pollinates the flower.
Lady's slipper orchids are the orchids in the subfamily Cypripedioideae. They are special because of their slipper-shaped pouches on their flowers. The pouch traps insects so that they must climb up past the modified stamens, where they get or give pollen, fertilizing the flower.
Some people think this subfamily should be different from the Orchidaceae as a family Cypripediaceae.
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