hordeum vulgare, persicaria lapathifolia, avena sativa, sonchus arvensis, anthemis arvensis, apera spica-venti, chenopodium album, cirsium arvense, convolvulus arvensis, fallopia convolvulus, galinsoga parviflora, matricaria chamomilla, myosotis arvensis, persicaria maculosa, polygonum aviculare, stellaria media, viola arvensis