apera spica-venti, juncus bufonius, spergula arvensis, aphanes arvensis, centaurea cyanus, cirsium arvense, fallopia convolvulus, gnaphalium uliginosum, matricaria chamomilla, myosotis arvensis, persicaria amphibia, poa annua, polygonum aviculare, rumex acetosella, stellaria media, veronica hederifolia, vicia sativa, viola tricolor