Jerusalemartichoke

Jerusalem artichoke n. In both senses also called girasol.

1. A North American sunflower (Helianthus tuberosus) having yellow, rayed flower heads and edible tubers.

2. The tuber of this plant, eaten as a vegetable. Also called sunchoke.

  [By folk etymology from Italian girasole, sunflower. See girasol.]

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