lolium perenne, persicaria hydropiper, poa annua, poa trivialis, alopecurus geniculatus, phleum pratense, polygonum aviculare, stellaria media, agrostis capillaris, cirsium arvense, rorippa palustris, trifolium repens, matricaria discoidea, persicaria lapathifolia, persicaria maculosa, ranunculus repens, ranunculus sceleratus