beta vulgaris, helminthotheca echioides, polygonum aviculare, setaria viridis, solanum nigrum, amaranthus retroflexus, capsella bursa-pastoris, chenopodium album, cirsium arvense, cynodon dactylon, echinochloa crus-galli, equisetum arvense, lysimachia arvensis, matricaria chamomilla, persicaria lapathifolia, portulaca oleracea, sonchus arvensis, veronica hederifolia