A website for the Department of Biology at the University of San Diego contains the following information about Salvia apiana, a well-known and popular smudging plant: “White sage is an important and sacred plant for Native Americans.
This plant provides both food and medicine for the Kumeyaay.
The seeds of the white sage can be toasted, ground up and used as a main ingredient for a meal called pinole.
The young stalk of white sage is also peeled and eaten. The leaves of this plant are used to remedy a cold or flu.
The Kumeyaay burn these leaves in a sweat-house to help purify out the toxins associated with an illness.
Leaves are also burned in living spaces to act as a form of fumigation.”