Akademik

having a rhizome formerly dried and used to treat rheumatism or liver disorders

1. : any of various uncultivated plants of the genus Dioscorea (as D. paniculata of eastern No. America)

2. : native potato 1

any of several uncultivated yams, esp. Dioscorea villosa, of the U.S., having a woody, tuberous root.

[1835-45]

wild yam,

any one of several yams growing wild.