Guchmein (Lomatium nudicaule)

Guchmein is also known as wild celery, Indian celery, or Indian consumption plant. Zones 3-10. Perennial. Prefers sandy well-drained soil. New shoots have a celery-like taste and can be eaten fresh or cooked. Seeds are used medicinally as a diuretic and immune booster. Traditionally used in ceremony; and for the treatment of tuberculosis.

It also has been used ceremonially in association with the fishing and processing of salmon among peoples of southwestern British Columbia and Washington. 

For example the Saanich, who called it qexmín, burn the seeds in a fire or on a stove when drying the salmon. Among other peoples also, including the Kwakwaka'wakw and Nuu-chah-nulth, the seeds are burned as an incense at funerals and chewed by singers to ease their throats.

Seeds can be purchased from Ravensong Seeds on Vancouver Island.