artemisia vulgaris, tanacetum vulgare, erigeron annuus, solidago gigantea, arrhenatherum elatius, bromus inermis, carduus crispus, carex hirta, cirsium arvense, convolvulus arvensis, dactylis glomerata, echium vulgare, erigeron canadensis, geranium pratense, hypericum perforatum, inula britannica, jacobaea vulgaris, lactuca serriola, lathyrus pratensis, lotus corniculatus, sisymbrium loeselii, trifolium arvense