cardoon
Concise Oxford English Dictionary © 2008 Oxford University Press:
cardoon /kɑːˈduːn/
▶noun a tall thistle-like plant related to the globe artichoke, with edible leaves and roots. [Cynara cardunculus.]
– origin C17: from Fr. cardon, from carde ‘edible part of an artichoke’, from mod. Provençal cardo, based on L. carduus, cardus ‘thistle, artichoke’.
'cardoon' also found in these Oxford entries:

