- chinese mustard, indian mustard, leaf mustard, gai choi, Brassica juncea - Asiatic mustard used as a potherb
--1 is a kind of mustard
--1 is a member of Brassica, genus Brassica - mustard, mustard greens, leaf mustard, Indian mustard - leaves eaten as cooked greens
--2 is a kind of cruciferous vegetable