digitaria sanguinalis, convolvulus arvensis, polygonum aviculare, bromus sterilis, bryum argenteum, erigeron canadensis, juncus bufonius, juncus tenuis, lactuca serriola, lactuca virosa, lepidium coronopus, medicago lupulina, plantago lanceolata, plantago major, sagina procumbens, senecio vulgaris, solanum nigrum, sonchus oleraceus