Prickly Pear Cactus Flower bending it's Anthers

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Uploaded by on May 29, 2009

Plants that move themselves. Prickly Pear Cactus Flower bending it's Anthers. Charles Darwin was the first to note that these cacti have thigmotactic anthers: when the anthers are touched, they curl over, depositing their pollen. This movement can be seen by gently poking the anthers of an open Opuntia flower.

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