DCHP-1 Online
beaver root 
a kind of water lily, Nymphaea odorata.
- 1822 (1928) They also subsist on the large roots of the white, scented water-lily, called by the Indians beaver-root. . . .
- 1907 The Newfoundland beavers subsist largely on the root of the water-lily . . . called by the Indians "beaver root."
- 1822 (1928) They also subsist on the large roots of the white, scented water-lily, called by the Indians beaver-root. . . .