Photo credit: Razultull / Reddit
No, this isn’t a planet from another planet, just the Romanesque Cauliflower, an edible flower bud of the species Brassica oleracea. It was first documented in Italy, and light green in color. Romanesco has a striking appearance because its form is a natural approximation of a fractal. When compared to a traditional cauliflower, as a vegetable its texture is far more crunchy, and its flavor is not as assertive, being delicate and nutty. Continue reading for a video and more information.
Romanesco superficially resembles a cauliflower, but it is light green in colour, and its form is strikingly fractal in nature. The inflorescence (the bud) is self-similar in character, with the branched meristems making up a logarithmic spiral. In this sense the bud’s form approximates a natural fractal; each bud is composed of a series of smaller buds, all arranged in yet another logarithmic spiral. This self-similar pattern continues at several smaller levels. The pattern is only an approximate fractal since the pattern eventually terminates when the feature size becomes sufficiently small. The number of spirals on the head of Romanesco broccoli is a Fibonacci number.