Transform your nails into a mesmerizing work of art with this stunning purple palm leaf design ... from the smooth brushstrokes to the delicate patterns unfolding before your eyes.

In fact, these patterns are consistent enough that cold, hard math can predict organic growth fairly well. One assumption that has been central to the study of phyllotaxis, or leaf patterns ...

A tree leaf has several types of veins. The central one is called the midrib or midvein. Other veins connect to the midrib and have their own unique patterns. Tree leaf veins in dicots ...