medicago lupulina, arenaria serpyllifolia, lolium perenne, populus canadensis, tanacetum vulgare, apera spica-venti, artemisia vulgaris, bromus sterilis, cerastium holosteoides, cirsium vulgare, daucus carota, epilobium tetragonum, erigeron annuus, hypericum perforatum, plantago major, poa compressa, solidago gigantea, trifolium campestre, tripleurospermum inodorum, verbascum phlomoides