mercurialis annua, stellaria media, aegopodium podagraria, capsella bursa-pastoris, chelidonium majus, chenopodium album, galinsoga parviflora, impatiens parviflora, lolium perenne, marchantia polymorpha, persicaria maculosa, poa annua, ranunculus repens, sisymbrium officinale, solanum nigrum, tussilago farfara, urtica urens