centaurea cyanus, convolvulus arvensis, elymus repens, fallopia convolvulus, persicaria maculosa, stellaria media, veronica arvensis, aethusa cynapium, aphanes arvensis, atriplex patula, avena fatua, capsella bursa-pastoris, cerastium glomeratum, chenopodium album, cirsium arvense, euphorbia exigua, galium aparine, gnaphalium uliginosum, lamium purpureum, lapsana communis, lysimachia arvensis, poa annua, polygonum aviculare, scleranthus annuus, stachys arvensis, thlaspi arvense, valerianella dentata, vicia hirsuta, viola arvensis, euphorbia helioscopia, lipandra polysperma, spergula arvensis, trifolium repens, tripleurospermum inodorum