Zilla is a genus of plants in the family Brassicaceae. It includes a single species, Zilla spinosa, that grows in the Sahara-Arabian deserts of northern Africa and the Arabian Peninsula.
Description Their flowers are light violet.
Subspecies Four subspecies are accepted. Zilla spinosa subsp. biparmata Zilla spinosa subsp. costata Zilla spinosa subsp. macroptera Zilla spinosa subsp. spinosa
Formerly placed here Physorhynchus chamaerapistrum (as Zilla chamaerapistrum and Zilla schouwioides )
References