biological architecture (with PIPs)

The iris is a little “architectural” marvel. From a furled-up lance, its petals unfold to form a complex structure that is clearly designed to take the best advantage of pollinators’ visits. Three of the petals arch upwards and overlap to form a canopy that protects the core of the flower, while the other three uncurl downwards like stuck-out tongues, revealing a delicate brush laden with pollen. Finally, inside, three more petals, smaller and slightly up-curled, enclose and protect the inner chamber, the source of the nectar. A visiting pollinator is therefore obliged to squeeze its way over the pollen brush, in order to reach the nectar inside, while we get to enjoy one of the most interesting and oddly shaped flowers in nature. :)