A Mandelbrot set-like fractal obtained by iterating the map
Cactus Fractal
See also
Fractal, Julia Set, Mandelbrot SetExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Cactus Fractal." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/CactusFractal.html