text: onopordum acanthium, centaurea calcitrapa, hirschfeldia incana, medicago sativa, verbascum sinuatum, carlina corymbosa, carthamus lanatus, chondrilla juncea, cirsium arvense, convolvulus arvensis, daucus carota, eryngium campestre, jacobaea aquatica, marrubium vulgare, xanthium spinosum, carduus tenuiflorus, lactuca serriola, urtica urens