An annual, occurring casually on tips and waste places, as a garden escape or bird-seed alien. Lowland.
R. sativus has been cultivated in gardens since at least 995 (Harvey, 1981); the white-rooted variety had been introduced from China by 1548. A variety of cultivars is grown in Britain, all of which are included on the map. The species was recorded from the wild by 1893.
Not known as a native wild plant; it doubtless developed in cultivation from the wild Raphanus taxa found in the Mediterranean region.
There are no images in this gallery.