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