The plant evidence from two Hohokam sites near Punta del Agua on the San Xavier Indian Reservation south of Tucson, Arizona enlarges our knowledge of plant utilization between A.D. 700-1200. The cultivated plants included maize (Zea mays), tepary beans (Phaseolus acutifolius var. latifolius) and jack beans (Canavalia ensiformis). The maize is similar to that from other Hohokam sites and to smaller and older kinds grown by the Papago. Jack beans might have been cultivated either for magical purposes or for food. The uncultivated plant remains included the seeds of tansymustard (Descurainia sp.) pigweed (Amararthus or Chenopodium) and stick-leaf (Mentielia sp.). The stick-leaf seed is apparently a new prehistoric record in southern Arizona. The charred buds of cholla (Opuntia sp.) provide direct evidence of Hohokam utilization of a food source popular with the Pima and Papago.