tripleurospermum inodorum, sisymbrium altissimum, chenopodium album, tussilago farfara, agrostis stolonifera, artemisia vulgaris, erysimum cheiranthoides, lactuca serriola, leucanthemum vulgare, medicago lupulina, persicaria maculosa, poa annua, polygonum aviculare, sisymbrium officinale, stellaria aquatica, achillea millefolium, atriplex patula, capsella bursa-pastoris, cirsium arvense, dactylis glomerata, deschampsia cespitosa, lolium perenne, persicaria lapathifolia, plantago major, poa pratensis, populus canadensis, rumex obtusifolius, trifolium repens