digitaria sanguinalis, amaranthus deflexus, capsella bursa-pastoris, convolvulus arvensis, daucus carota, erigeron canadensis, lactuca serriola, lactuca virosa, lepidium coronopus, oxalis stricta, plantago major, poa annua, polygonum aviculare, senecio vulgaris, solanum nigrum, sonchus oleraceus, veronica persica