1 any of several coarse grasses, Muhlenbergia spp., growing in the sloughs of the Prairies or of the interior of B.C.
See also: slough grass
- 1934  In the tall slough hay beside them[,] orange lilies raised their heads waist high. . . .
- 1948  I have often seen them kneeling on their forelegs to feed in comfort on short willows and slough hay.
2 hay from slough grass.
See also: slough grass
- 1955  FOR SALE--Baled slough hay, wire tied, $10.00 per ton.
- 1957  The Indian agent put up a wing next to the school and at last the Jordens could occupy a real bedroom--one made of boards and covered with long slough hay and clay.