(n) a golden thistle of southwestern Europe cultivated for its edible sweet roots and edible leaves and stalks; its yellow flowers are used as a substitute for saffron, Syn. Scolymus hispanicus
(n) Mediterranean biennial herb with long-stemmed heads of purple ray flowers and milky sap and long edible root; naturalized throughout United States, Syn. vegetable oyster, oyster plant, Tragopogon porrifolius