text: chenopodium album, fallopia convolvulus, avena fatua, capsella bursa-pastoris, erigeron canadensis, galeopsis bifida, plantago major, silene latifolia, stachys palustris, centaurea cyanus, crepis tectorum, fumaria officinalis, galeopsis ladanum, poa pratensis, polygonum aviculare, setaria pumila, sonchus oleraceus, stellaria media, viola arvensis