tussilago farfara, galinsoga quadriradiata, argentina anserina, persicaria hydropiper, bidens frondosa, persicaria lapathifolia, rorippa palustris, rumex obtusifolius, stellaria media, tanacetum vulgare, capsella bursa-pastoris, heracleum sphondylium, impatiens parviflora, lolium perenne, plantago major, poa trivialis, urtica dioica, chenopodium album