Potato and Taro

Potato noun - An edible tuber native to South America; a staple food of Ireland.

Taro and potato are semantically related In some cases you can use "Taro" instead a noun "Potato".

Taro noun - Herb of the Pacific islands grown throughout the tropics for its edible root and in temperate areas as an ornamental for its large glossy leaves.

Potato and taro are semantically related in vegetable topic. You can use "Potato" instead a noun "Taro".