Related Clues:

• Base for poi
• Islands tuber
• Polynesian food
• Edible corm
• It's harvested in Hawaii
• Edible root of 58-Down
• Earth not even, pulled up tuber
• Taro corn
• Chinese eddo
• Red down covering edible plant
• Tuber is most unusual rising up out of stone
• Rejected unusual oriental edible root
• First explorer - eccentric, brought back elephant's ear
• Not all fodder is sent back - this is edible
• Edible plant being cooked does shrink quite a lot