Ethnobotany describes man's relationship and interaction with the plant world in which he lives. Knowledge of plants from which food, shelter, clothing and medicines were obtained,was part of the cultural heritage of the Amerind peoples and assumed an integral part of their life style. Using the Ethnobotanical knowledge of three generations of Stoney women, this study seeks to ascertain the continued use of this information today (now that it is no longer necessary for daily survival) maintaining that a disuse constitutes a cultural loss of traditional material. A contemporary and historical perspective of the Stoney Indians of Morley, Alberta is presented as background information, against which this study of cultural change can be viewed.