Wild Rice is not a grain but an aquatic grass plant: The term wild rice is the common name given to this aquatic grass plant (Zizania) and the seed that it produces. It is not genetically related to rice (Oryza) at all. There are similarities between the two in that both species grow in water and produce a grain. More information is available @ California Wild Rice Advisory Board
Hope this helps,
Dawn - California Wild Rice Advisory Board
Sacramento, California