lepidium ruderale, plantago major, erigeron canadensis, poa annua, poa pratensis, amaranthus retroflexus, bromus sterilis, bromus tectorum, chenopodium album, euphorbia peplus, hordeum murinum, lolium perenne, matricaria discoidea, mercurialis annua, persicaria lapathifolia, solanum nigrum, tripleurospermum inodorum