artemisia vulgaris, apera spica-venti, solidago canadensis, tanacetum vulgare, cirsium arvense, elymus repens, achillea millefolium, arrhenatherum elatius, calamagrostis epigejos, carduus acanthoides, convolvulus arvensis, daucus carota, erigeron annuus, erigeron canadensis, hypericum perforatum, oenothera biennis, silene latifolia, sisymbrium loeselii, solidago gigantea, tripleurospermum inodorum, melilotus albus, rumex thyrsiflorus, stellaria media