portulaca oleracea, chenopodium album, convolvulus arvensis, hordeum murinum, linaria genistifolia, matricaria chamomilla, papaver rhoeas, setaria verticillata, amaranthus retroflexus, diplotaxis muralis, eragrostis minor, erigeron canadensis, helianthus annuus, lolium perenne, medicago sativa, tragopogon dubius