From Southeast Asia

Lesser Asiatic Yam or Potato Yam Dióscorea esculenta This was one of the first yam species cultivated, but it is seldom found today outside of its native Southeast Asia and Pacific Islands. The flesh is soft with a slightly sweet taste. This is one species that does not store well.

Purple Yam As the name implies, this yam is characterized by its vibrant violet flesh, which makes a statement in desserts and savory dishes in Hawaii, the Philippines, Vietnam, and India.

White Yam D. alata Sometimes called greater Asiatic yam or water yam, this white-fleshed yam is the most important species in Southeast Asia and the nearby islands and the yam with the largest global distribution.