text: apera spica-venti, ceratodon purpureus, cerastium holosteoides, equisetum arvense, galium aparine, juncus bufonius, myosotis arvensis, poa annua, sagina procumbens, stachys palustris, stellaria media, veronica arvensis, vicia sativa, viola arvensis, capsella bursa-pastoris, centaurea cyanus, convolvulus arvensis, fallopia convolvulus, galeopsis tetrahit, gnaphalium uliginosum, odontites vernus, persicaria hydropiper, scleranthus annuus, trifolium arvense, trifolium repens, vicia hirsuta