digitaria sanguinalis, portulaca oleracea, elymus repens, amaranthus hybridus, amaranthus retroflexus, ambrosia artemisiifolia, artemisia vulgaris, capsella bursa-pastoris, carduus acanthoides, chenopodium album, cirsium arvense, conium maculatum, convolvulus arvensis, echinochloa crus-galli, eragrostis cilianensis, erigeron canadensis, galinsoga parviflora, lactuca serriola, setaria pumila, stellaria media, tripleurospermum inodorum