Dioscorea Elephantipes Testudinaria (Elephant Foot, Caudiciform Yam)
Also known as the Turtle Plant, the caudex on this plant resembles the shell of a box turtle with its hexagon shaped fissured bark. Caudex is round-oval with vines covered in pillowed, heart shaped leaves. A collector's plant! 4" pot sizes already have a nice vine and a little round caudex. The caudex should be kept underground for the first few years for fastest growth.