text: centaurea cyanus, cirsium arvense, fallopia convolvulus, galeopsis tetrahit, chenopodiastrum hybridum, euphorbia helioscopia, lapsana communis, myosotis arvensis, polygonum aviculare, sherardia arvensis, sonchus arvensis, viola arvensis, avena fatua, buglossoides arvensis, lamium amplexicaule, persicaria lapathifolia