text: xanthium strumarium, populus nigra, plantago arenaria, datura stramonium, diplotaxis tenuifolia, dipsacus fullonum, dittrichia viscosa, heliotropium europaeum, lysimachia arvensis, mentha pulegium, oenothera biennis, oxybasis rubra, panicum capillare, persicaria maculosa, phalaris arundinacea, plantago sempervirens, reseda lutea, salix purpurea, saponaria officinalis