text: sinapis arvensis, achillea millefolium, agrostemma githago, capsella bursa-pastoris, centaurea cyanus, chenopodium album, cirsium arvense, convolvulus arvensis, crepis setosa, euphorbia helioscopia, fallopia convolvulus, galeopsis speciosa, lycopsis arvensis, rumex acetosella, sonchus arvensis, thlaspi arvense, vicia sativa, viola tricolor