arctium lappa, achillea collina, amaranthus retroflexus, ambrosia artemisiifolia, elymus repens, erigeron annuus, lactuca serriola, atriplex tatarica, bromus hordeaceus, convolvulus arvensis, fallopia convolvulus, grindelia squarrosa, polygonum aviculare, tragopogon dubius, galium verum, humulus lupulus