centaurea cyanus, convolvulus arvensis, ambrosia artemisiifolia, cirsium arvense, delphinium consolida, matricaria chamomilla, sinapis arvensis, agrostis stolonifera, amaranthus retroflexus, arctium lappa, caucalis platycarpos, chenopodium album, erigeron canadensis, papaver rhoeas, pastinaca sativa, sonchus arvensis, sorghum halepense