brassica napus, elymus repens, gnaphalium uliginosum, kickxia elatine, centaurium pulchellum, euphorbia exigua, lysimachia arvensis, tripleurospermum inodorum, aethusa cynapium, apera spica-venti, chenopodium album, euphorbia helioscopia, juncus bufonius, plantago uliginosa, polygonum aviculare, sonchus oleraceus, stellaria media, thlaspi arvense, lamium amplexicaule, persicaria maculosa, poa pratensis, urtica dioica