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