"There was silence in the tepee. Sitting Bull laid his
tomahawk and knife on the ground, and began to
fill his long pipe with tobacco and killikinick, the
dried scrapings of willow bark. No one spoke. The
chief looked at the fire, and took no notice of us until
he had puffed at his pipe for a few moments

When I was a small boy, I was shown a small flowering plant, and was told that it was "killikinick'.
Indian tobacco. Wish I knew how to reconcile the apparent conflict.