apera spica-venti, polygonum aviculare, scleranthus annuus, capsella bursa-pastoris, centaurea cyanus, myosotis arvensis, vicia sativa, viola arvensis, arenaria serpyllifolia, arnoseris minima, chenopodium album, erodium cicutarium, fallopia convolvulus, galeopsis angustifolia, matricaria chamomilla, rumex acetosella