What's the difference between yams and sweet potatoes?

Name: What's the difference between yams and sweet potatoes?
Uploaded: 2016-12-27T20:13:56.000Z
Duration: 1 min 6 s
Description: A yam is not a sweet potato and a sweet potato is not a yam. Our friends at How Does it Grow? explain the difference.

A yam is not a sweet potato and a sweet potato is not a yam. Our friends at How Does it Grow? explain the difference.

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Dec. 27, 2016, 4:00 PM EST / Source: TODAY

By How Does it Grow

A yam is not a sweet potato and a sweet potato is not a yam. Our friends at How Does it Grow? explain the difference.