text: fallopia convolvulus, elymus repens, viola arvensis, apera spica-venti, arenaria serpyllifolia, capsella bursa-pastoris, chenopodium album, crepis tectorum, galeopsis ladanum, myosotis arvensis, scleranthus annuus, setaria viridis, vicia sativa, erigeron canadensis, persicaria lapathifolia