poa trivialis, lolium perenne, cirsium arvense, petasites hybridus, urtica dioica, anthriscus sylvestris, lamium album, persicaria hydropiper, persicaria maculosa, plantago major, poa annua, polygonum aviculare, rumex acetosa, senecio vulgaris, urtica urens, erigeron canadensis, solanum nigrum