amaranthus powellii, atriplex patula, capsella bursa-pastoris, cardamine hirsuta, centaurea cyanus, cerastium holosteoides, chaenorhinum minus, chenopodium album, chenopodium ficifolium, convolvulus arvensis, lipandra polysperma, lolium multiflorum, lysimachia arvensis, phleum pratense, poa trivialis, ranunculus repens, senecio vulgaris, setaria verticillata, thlaspi arvense