Complex sentence: Big sagebrush was used as an herbal medicine by Native Americans throughout the Intermountain West of North America, and was a panacea amongst Eskimo peoples, used to treat a variety of complaints.
Split into simpler sentences: Big sagebrush was used as an herbal medicine by Native Americans throughout the Intermountain West of North America. It was considered a panacea by many Eskimo peoples, and used to treat a variety of complaints.