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