Posts Tagged ‘Fibonacci spiral’

Many cacti and succulents form geometric spirals similar to those of sunflowers, pine cones and nautilus shells. Spiral leaf arrangements funnel rain to roots, and keep upper leaves from shading lower ones. The arrangement of a plant’s leaves along the stem is phyllotaxis (from ancient Greek, phýllon “leaf” and táxis “arrangement”). Mathematically, spiral phyllotaxis follows a…