galinsoga quadriradiata, galinsoga parviflora, stellaria media, capsella bursa-pastoris, euphorbia peplus, urtica urens, arabidopsis thaliana, chenopodium album, cirsium arvense, erysimum cheiranthoides, geranium pusillum, lamium purpureum, oxalis stricta, poa annua, senecio vulgaris, sinapis arvensis, sonchus oleraceus, viola arvensis