cirsium arvense, setaria pumila, convolvulus arvensis, galium aparine, lappula squarrosa, lathyrus tuberosus, medicago lupulina, persicaria amphibia, persicaria lapathifolia, polygonum aviculare, ranunculus repens, sinapis arvensis, sorghum halepense, stachys annua, vicia tetrasperma, xanthium orientale