text: amaranthus powellii, amaranthus retroflexus, echinochloa crus-galli, arrhenatherum elatius, convolvulus arvensis, festuca rubra, lolium perenne, pastinaca sativa, rumex crispus, silene latifolia, capsella bursa-pastoris, plantago lanceolata, plantago major, stellaria media, tripleurospermum inodorum, veronica polita, viola arvensis, persicaria amphibia, pimpinella saxifraga, sonchus asper