malva sylvestris, hordeum murinum, poa annua, capsella bursa-pastoris, sisymbrium officinale, bromus catharticus, geranium dissectum, helminthotheca echioides, lolium perenne, plantago lanceolata, symphyotrichum squamatum, trifolium repens, bromus sterilis, crepis vesicaria, dactylis glomerata, lactuca virosa, linum bienne, plantago major, sonchus oleraceus