indian rice

GNU Webster's 1913

1. adj. (Bot.) a reedlike water grass. See Rice.
2. n. a tall reedlike water grass (Zizania aquatica), bearing panicles of a long, slender grain, much used for food by North American Indians. It is common in shallow water in the Northern States. Called also water oat, Canadian wild rice, etc.

WordNet 3.0

1. n. grains of aquatic grass of North America