cassava Q Tapioca is not a grain product. It is from a tuber, namely cassava. Cassava is a shrubby tropical American and African plant (Manihot esculenta) widely grown for its large, tuberous, starchy roots. The root of this plant, also called "cassava," is eaten as a staple food in the tropics, but only after leaching and drying to remove cyanide. Cassava starch is the source of tapioca. Cassava is also called manioc. Manioc, not maniac. 000928 ... lokkust The Sheep Look Up 000928 what's it to you? who go blather from