text: apera spica-venti, capsella bursa-pastoris, veronica hederifolia, myosotis arvensis, veronica triphyllos, arabidopsis thaliana, buglossoides arvensis, chenopodium album, cirsium arvense, draba verna, equisetum arvense, erysimum cheiranthoides, fallopia convolvulus, gnaphalium uliginosum, lamium amplexicaule, mentha arvensis, roemeria argemone, senecio vulgaris, sinapis arvensis, stellaria media, veronica arvensis, vicia hirsuta, vicia sativa