text: triticum aestivum, apera spica-venti, elymus repens, bromus secalinus, centaurea cyanus, cirsium arvense, euphorbia helioscopia, galeopsis tetrahit, galium aparine, lolium pratense, lysimachia arvensis, myosotis arvensis, odontites vernus, papaver rhoeas, persicaria lapathifolia, plantago uliginosa, polygonum aviculare, rumex obtusifolius, sinapis arvensis, stachys arvensis, tripleurospermum inodorum, vicia grandiflora, vicia sativa, vicia tetrasperma, viola arvensis, fallopia convolvulus, galinsoga quadriradiata