text: apera spica-venti, chenopodium album, poa annua, stellaria media, vicia hirsuta, aphanes arvensis, arabidopsis thaliana, arenaria serpyllifolia, capsella bursa-pastoris, centaurea cyanus, elymus repens, fallopia convolvulus, myosotis arvensis, papaver dubium, polygonum aviculare, silene latifolia, sonchus oleraceus, tripleurospermum inodorum, veronica arvensis, veronica hederifolia, viola arvensis, urtica dioica