Cell wall microlensing produces brilliant flower color

Pamela J. Hines, Sacha Vignieri, Jesse Smith
2018 Science  
Microscopic ridges enhance California poppy color through prismatic effects. Chloride ions attack passive films on metal surfaces and cause corrosion.
doi:10.1126/science.361.6406.988-a fatcat:hwuuk72rrbdpnkhxys62gl7bdi