galinsoga quadriradiata, stellaria media, galinsoga parviflora, poa annua, erysimum cheiranthoides, euphorbia peplus, lamium purpureum, mercurialis annua, sonchus oleraceus, capsella bursa-pastoris, chenopodium album, digitaria ischaemum, digitaria sanguinalis, equisetum arvense, erigeron canadensis, lysimachia arvensis, roemeria argemone, rumex obtusifolius, senecio vulgaris, setaria viridis, urtica urens