tussilago farfara, elymus repens, apera spica-venti, artemisia vulgaris, bromus inermis, calamagrostis epigejos, cerastium arvense, cirsium arvense, convolvulus arvensis, dactylis glomerata, equisetum arvense, galinsoga parviflora, lepidium draba, poa compressa, poa palustris, polygonum aviculare, daucus carota, hieracium sabaudum, mentha arvensis, robinia pseudoacacia