text: apera spica-venti, arabidopsis thaliana, fallopia convolvulus, rumex acetosella, scleranthus annuus, veronica triphyllos, anthemis arvensis, arenaria serpyllifolia, arnoseris minima, chenopodium album, crepis tectorum, draba verna, elymus repens, myosotis arvensis, vicia hirsuta, vicia sativa