Jerusalem artichoke
noun🔊/dʒəˌruːsələm ˈɑːtɪtʃəʊk/
🔊/dʒəˌruːsələm ˈɑːrtɪtʃəʊk/
(British English also artichoke)
a light-brown root vegetable that looks like a potato 洋姜；菊芋 Word Originearly 17th cent.: Jerusalem, alteration of Italian girasole ‘sunflower’.