lysimachia arvensis, setaria pumila, lysimachia foemina, persicaria lapathifolia, sonchus oleraceus, stachys annua, veronica polita, cirsium arvense, convolvulus arvensis, echinochloa crus-galli, euphorbia exigua, galinsoga parviflora, galium spurium, lathyrus tuberosus, silene noctiflora, sonchus arvensis, sonchus asper, viola arvensis, amaranthus powellii, euphorbia helioscopia, euphorbia peplus, tripleurospermum inodorum