- The Cynara scolymus, a plant somewhat resembling a
thistle, with a dilated, imbricated, and prickly involucre. The head
(to which the name is also applied) is composed of numerous oval
scales, inclosing the florets, sitting on a broad receptacle, which,
with the fleshy base of the scales, is much esteemed as an article of
food. - See Jerusalem artichoke.