carduus acanthoides, arctium lappa, arctium tomentosum, polygonum aviculare, achillea millefolium, anthemis arvensis, argentina anserina, artemisia vulgaris, atriplex patula, berteroa incana, capsella bursa-pastoris, cichorium intybus, elymus repens, erigeron canadensis, glechoma hederacea, leonurus cardiaca, lolium perenne, pimpinella saxifraga, plantago lanceolata, poa annua, poa pratensis, prunella vulgaris, silene latifolia, sisymbrium officinale, syntrichia ruralis, tanacetum vulgare, trifolium pratense