Perideridia spp., commonly known as Ipos or Yampah, have provided major subsistence crops for groups throughout Western North America. In this paper, behavioral chains will be outlined through the application of ethnobotanical information from those groups using Perideridia spp. Additional consideration will also be given to the management strategie which might have been used upon these crops. Over the last three years, experiments have been conducted by the author, which provide more insight into these behavioral chains. The results of these experiments will be examined, along with the behavioral chains themselves, for the potential insight they may give the paleoethnobotanical determination of the past use and managment of Perideridia spp.