What is "cassavas"

Usage examples of "cassavas".

Looking at least halfway respectable now, he gave a black farmer a couple of coins in exchange for letting him ride along with a wagonload of cassavas and mangoes to the town of Port-au-Prince, eighteen miles farther down the coast.

M, maybe I'll find your garden with cassavas and akee like you showed me and I'll know the good parts from the bad parts.