brassica napus, buglossoides arvensis, galium aparine, papaver rhoeas, viola arvensis, adonis aestivalis, avena fatua, centaurea cyanus, fallopia convolvulus, fumaria officinalis, lamium amplexicaule, neslia paniculata, sherardia arvensis, thlaspi arvense, tripleurospermum inodorum, valerianella dentata, veronica hederifolia