/rahb/
a plant, Brassica rapa ruvo, of which the slightly bitter, dark-green leaves and clustered flower buds are eaten as a vegetable.
Also, broccoli raab /rahb/ , broccoli rab /rahb/ . Also called Italian turnip, raab, turnip broccoli .
[ perh. alter. of It broccoli di rapa flowering tops of the turnip ]