THE POTENTIAL contribution of paleoethnobotany has barely been tapped. Yet the analysis of archaeological plant remains has already become a significant means of recovering information relevant to a variety of problems of paleoecology, pre-industrial subsistence, the origins of agriculture, and the evolution of plant domestication. Unlike some other lines of research o n these problems, the identification and quantification of plant remains in prehistoric garbage, sewage, and general habitation debris provides empirical data derived from the results of actual events. Although various potential sources of error are inherent in this technique, they d o not include those which are unavoidably present in those techniques which are dependent upon inference based on present conditions and situations. Nevertheless, the best results are being contributed by studies utilizing data acquired by a variety of investigative techniques dealing with the present as well as past.2 What follows is an attempt to portray the background and current status of investigation and findings regarding the prehistoric relationships of man to a single plant species and to indicate the kinds of information which are relevant t o this problem.