Yams are starchy and have a rough, brown exterior. They can grow up to 45 feet long and are eaten in parts of Latin America, ...

but yams come from the motherland in Africa, while sweet potatoes are grown in North America. Are yams and sweet potatoes the ...

The question of such contact - long hypothesized in part based on the enduring presence in Polynesia of a staple food in the form of the sweet potato that originated in South and Central America ...

Yams have been in great supply this winter. These knobbly tubers are about the size of a large thumb. The most common yam is pink-orange in colour and has a slightly shiny, ribbed surface.