Zizania latifolia Zizania latifolia, known as Manchurian wildrice, is the only member of the wild rice genus Zizania native to Asia. It is used as a food plant, with both the stem and grain being edible. http://en.wikipedia.org/wiki/Zizania_latifolia 不了解,以前在老家的时候,种过。这边没见过有。可能加州,或者南方水比较多地方 ,可能会有。