convolvulus arvensis, poa palustris, lactuca serriola, atriplex patula, solidago canadensis, elymus repens, oenothera biennis, heracleum sphondylium, tanacetum vulgare, tripleurospermum inodorum, cirsium arvense, tussilago farfara, erysimum cheiranthoides, fallopia convolvulus, poa compressa