Phylum: Magnoliophyta - Class: Equisetopsida - Order: Brassicales - Family: Brassicaceae
Sea cliffs are the natural habitat of wild brassicas. Wild Cabbage is the origin of the many kinds of cabbages, cauliflowers and broccoli that we cultivate today.
Changing the family name of this family of plants from Cruciferae to Brassicaceae (Cabbage plants) has done nothing for a group that already gets a bad press (Oilseed Rape, which causes allergic reactions in even normally healthy individuals is an example) and so it is good to remember that some of our most loved garden plants and wildflowers are also cabbages - Aubretia deltoidea, for instance.
This lovely plant is not only a must for country gardens, but it is also a delightful wildflower that grows in parts of the Mediterranean region.
Related species such as black mustard, rape and wild turnip are all very similar in appearance, having four yellow flower petals and leaves with a bluish tinge. they too are commonly found near the coast.