Roses, long admired for their beauty and symbolic richness, owe their iconic petal shape to a mechanical process that has remained largely mysterious—until now. According to a new study, the pointed ...

Rose petals' unique shapes come from stress during growth. Differential growth and mechanical stresses create curled edges. Research shows petals violate a mathematical condition, causing stress.

Rose petals, celebrated for their vivid colours and graceful curves, are more than just visually striking. Their unique shapes arise from a complex interaction of biology, physics, and geometry. As ...