A flower in Asia bucks the rules of evolution, puzzling scientists

By Taylor Nicioli, CNN (CNN) — When plant biologist Jing-Yi Lu was earning his bachelor’s degree in Taiwan, he began to take note of the local flora. He paid particular attention to the lipstick vines, which, in Taiwan, have short, tubelike flowers with a yellowish-green hue. However, in other parts of Asia, lipstick vines are