Some of the primary materials used by the Salish tribe were beargrass (which was used as a decorative material), cattail, western red cedar, horsetail, scouring rush, wild cherry, maidenhair fern, and sweetgrass. A common style used by the Salish is twining, particularly in the creation of soft-twined baskets. Salish baskets can also be made by coiling. Archaeological evidence points to the Salish using twining for at least 3,000 years.
-Nile Thompson and Carolyn Marr, Crow's Shells: Artistic Basketry of Puget Sound