Related Clues:

• Starchy root vegetable
• Starch idiot put into sparkling wine
• Ingredient in purple bubble tea
• Important vegetable in Hawaiian cuisine
• ___ cake (dim sum item)
• Pacific root vegetable
• Milk tea flavor
• Root vegetable used to make poi
• Hawaiian diet staple
• Root pounded to make poi
• Samoa's largest export before the blight
• Root in purple boba
• Root that's a source of tapioca
• Tropical plant fool put in wine
• Pacific plant with an edible root