hordeum murinum, lolium perenne, polygonum aviculare, sclerochloa dura, bromus hordeaceus, capsella rubella, chenopodium album, convolvulus arvensis, cynodon dactylon, lepidium coronopus, matricaria chamomilla, medicago minima, phleum subulatum, plantago lanceolata, poa infirma, rostraria cristata, rumex pulcher, sisymbrium officinale