Ethnobotany. This plant was used by many First Peoples: Blackfoot, Chehalis, Cowlitz, Hesquiat, Hoh, Hupa, Karok, Klallam, Maidu, Makah, Montana, Nitinaht, Okanagan-Colville, Pomo, Quileute, Quinault, Yama, Yurok. Poultices of chewed roots were [...]