agrostis stolonifera, glyceria fluitans, poa trivialis, ranunculus sceleratus, alopecurus geniculatus, persicaria hydropiper, trifolium repens, bidens tripartita, cirsium arvense, elymus repens, lolium perenne, plantago major, poa annua, polygonum aviculare, rumex conglomeratus, senecio vulgaris, sparganium erectum, urtica dioica