There’s a very good reason for this plant’s iridescent color.
Begonia species adapted to deep-shade conditions display blue leaf iridescence, a striking form of structural color originating from specialized chloroplasts in the epidermis.
In the fading twilight on the rainforest floor, a plant’s leaves glimmer iridescent blue. And now scientists know why. These exotic blue leaves pull more energy out of dim light than ordinary leaves because of an odd trick of quantum mechanics.