Jerusalem artichoke

jerusalem-artichoke的词性：
n.（名词）

1. A North American sunflower (Helianthus tuberosus) having yellow, rayed flower heads and edible tubers.
菊芋：北美一种向日葵属植物（菊芋 向日葵属） ，长有黄色的盘花和可食用块茎

2. The tuber of this plant, eaten as a vegetable.Also called girasol
当作蔬菜食用的菊芋的茎也作 girasol

jerusalem-artichoke的词源：

3. By folk etymology from obsolete Italian girasole [sunflower] * see girasol
源自 已废意大利语 girasole的民间词源 [向日葵] *参见 girasol