Wild potato Meaning, Definition & Usage

  1. noun erect or spreading perennial of southwestern United States and Mexico bearing small pale brown to cream-colored tubers resembling potatoes
    Solanum jamesii.

WordNet

Definitions
  1. . (Bot.) (a) A vine (Ipomoea pandurata) having a pale purplish flower and an enormous root. It is common in sandy places in the United States. (b) A similar tropical American plant (I. fastigiata) which it is thought may have been the original stock of the sweet potato.

Webster 1913