beta vulgaris, helminthotheca echioides, lysimachia arvensis, persicaria lapathifolia, polygonum aviculare, solanum nigrum, cirsium arvense, digitaria sanguinalis, echinochloa crus-galli, galega officinalis, marrubium vulgare, medicago lupulina, portulaca oleracea, rapistrum rugosum, setaria viridis, sonchus oleraceus, symphyotrichum squamatum, melilotus officinalis, trifolium pratense