What is a very starchy root vegetable?

* Potato: The classic example. It's a staple food for many cultures and is incredibly versatile.

* Cassava (Yuca): This tropical root is extremely starchy, even more so than potatoes. It's often used to make tapioca.

* Sweet Potato: While also sweet, sweet potatoes are still very starchy. They're often used in desserts and savory dishes.

* Arrowroot: This tropical root is a source of starch that's often used as a thickener in cooking.

* Parsnip: While less starchy than potatoes, parsnips still contain a significant amount of starch.

The "very starchiest" depends on what you mean by "starchy." If you're looking for the highest starch content, then cassava might be the winner. But if you're looking for the most commonly consumed starchy root vegetable, then potatoes would be the top choice.