apera spica-venti, aphanes microcarpa, arabidopsis thaliana, centaurea cyanus, draba verna, myosotis arvensis, scleranthus annuus, stellaria media, vicia hirsuta, achillea virescens, arenaria serpyllifolia, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, equisetum arvense, galium aparine, lycopsis arvensis, lysimachia arvensis, matricaria chamomilla, myosurus minimus, papaver dubium, raphanus raphanistrum, trifolium repens, vicia sativa, veronica hederifolia