Biomechanical 'size matching' explains floral isolation in bumblebee-pollinated elephant-nose flowers

Buzz pollination—a process in which bees extract pollen by vibrating flowers—occurs in more than 20,000 plant species. Among the most specialized examples are the wildflowers of the Pedicularis genus (Orobanchaceae), whose curved "elephant-nose" petals rely exclusively on bumblebee vibrations for pollination.