onopordum acanthium, carduus acanthoides, arctium lappa, artemisia vulgaris, elymus repens, reseda luteola, verbascum densiflorum, atriplex oblongifolia, convolvulus arvensis, echinops sphaerocephalus, lactuca serriola, medicago lupulina, sisymbrium loeselii, tripleurospermum inodorum, cirsium arvense, hyoscyamus niger, verbascum phlomoides