Zilla is a genus of plants in the family Brassicaceae, that grows in the Sahara-Arabian extreme deserts, in Northern Africa and the Middle East. Species Species include the following, and possibly others: Zilla macroptera Zilla spinosa Formerly placed here: Physorhynchus chamaerapistrum, formerly Zilla chamaerapistrum and Zilla schouwioides Description Their flowers are light violet. References Brassicaceae Brassicaceae genera