xanthium orientale, bidens frondosa, bidens tripartita, chenopodium album, chenopodium opulifolium, cirsium arvense, digitaria sanguinalis, dysphania botrys, echinochloa crus-galli, elymus repens, gnaphalium uliginosum, panicum capillare, persicaria lapathifolia, polygonum aviculare, rorippa palustris, solanum nigrum