Ag News: Yams -V- Sweet Potatoes and Simplot Buys PinnacleAg News: Yams -V- Sweet Potatoes and Simplot Buys PinnacleWhat’s a yam and what’s a sweet potato? A TRUE “yam” is never a sweet potato. Yams are tropical roots with rough brown skin and white, starchy flesh. AgInfo.netAgInfo.net