cirsium arvense, elymus repens, erysimum cheiranthoides, persicaria lapathifolia, persicaria maculosa, capsella bursa-pastoris, chenopodium album, galinsoga quadriradiata, galium aparine, sonchus arvensis, stellaria media, amaranthus retroflexus, avena fatua, fallopia convolvulus, polygonum aviculare, setaria pumila, sonchus asper, tripleurospermum inodorum, viola arvensis