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The common name of batatas edulis is the sweet potato. The tubers of the plant are edible.

Batatas Edulis

The common name of batatas edulis is the sweet potato. The tubers of the plant are edible.

Three shapes of sweet potato leaves. On left, cut-leaf type; in center, shouldered leaf; and on right, entire or "round" leaf.

Sweet Potato Leaves

Three shapes of sweet potato leaves. On left, cut-leaf type; in center, shouldered leaf; and on right,…

A branch of a vineless sweet potato plant, showing the crowded position of leaf stems.

Sweet Potato Plant

A branch of a vineless sweet potato plant, showing the crowded position of leaf stems.

The fruit and flowers of a female yam plant.

Yam

The fruit and flowers of a female yam plant.

The male flowers of a yam plant.

Yam

The male flowers of a yam plant.

Yam is the common name for some species in the genus Dioscorea (family Dioscoreaceae).These are perennial herbaceous vines cultivated for the consumption of their starchy tubers in Africa, Asia, Latin America and Oceania. There are hundreds of cultivars among the cultivated species. The sweet potato (Ipomoea batatas) has traditionally been referred to as a "yam" in parts of the southern United States and Canada even though it is not part of the Dioscoreaceae family. The vegetable has a rough skin which is difficult to peel, but which softens after heating. The skins vary in color from dark brown to light pink

Yam

Yam is the common name for some species in the genus Dioscorea (family Dioscoreaceae).These are perennial…