Is a sweet potato squash or potato?

It's a root vegetable from the morning glory family, making it more closely related to bindweed than to potatoes or squash.

Here's a breakdown:

* Potatoes are part of the nightshade family.

* Squash is part of the gourd family.

* Sweet Potatoes are part of the morning glory family.

Even though they are called "sweet potatoes", they are not related to regular potatoes.