Early in the trip, Captain Lewis found a plant on the lower Missouri that he also identified as wild ginger. This earlier specimen has been lost. This species might be Asarum canadense.
Capt. Lewis, June 1, 1804 - No. 10. This plant was taken the 1st of June at the mouth of the Osage river; it is known in this country by the name of the wild ginger, it resembles that plant somewhat in both taste and effect, it is a strong stomatic stimelent, and freequently used in sperits with bitter herbs. it is common throughout the rich lands in the Western country.