text: hordeum murinum, trifolium nigrescens, anthemis arvensis, lolium perenne, medicago minima, poa annua, bromus sterilis, capsella rubella, carduus pycnocephalus, centaurea calcitrapa, chenopodium vulvaria, convolvulus arvensis, dactylis glomerata, kickxia commutata, lepidium draba, malva nicaeensis, matricaria chamomilla, mercurialis annua, polycarpon tetraphyllum, rumex pulcher, sisymbrium officinale, verbascum sinuatum