In 1952 Alan Turing wrote a paper titled "The Chemical Basis of Morphogenesis" in which he described a theory of how patterns, such as dots or stripes, can arise in homogeneous systems under certain conditions.

In this generative art work a compressible fluid flow is coloured and stirred by a multi-scale Turing pattern. A bilateral symmetry is imposed.

The result is most definitely not an orchid.