arabidopsis thaliana, chenopodium album, equisetum arvense, gnaphalium uliginosum, lamium purpureum, matricaria chamomilla, myosotis arvensis, persicaria maculosa, plantago uliginosa, poa annua, stachys palustris, stellaria media, cirsium arvense, elymus repens, persicaria lapathifolia, polygonum aviculare, sonchus asper, thlaspi arvense, tussilago farfara, veronica arvensis