What does the Multnomah tribe call this region, which is near the northern range of this plant Lilium washingtonianum?
Lilium washingtonianum:  It is named after Martha Washington and not the state of Washington; in fact, as the northern range of the plant is near Mount Hood in Oregon, it does not naturally occur in the state of Washington. Mount Hood: Mount Hood, called Wy'east by the Multnomah tribe, is a potentially active stratovolcano in the Cascade Volcanic Arc of northern Oregon.
Wy'east