convolvulus arvensis, polygonum aviculare, amaranthus retroflexus, bifora radians, chenopodium album, euphorbia helioscopia, geranium dissectum, holosteum umbellatum, lysimachia arvensis, persicaria maculosa, sinapis arvensis, thlaspi arvense, lamium amplexicaule, silene latifolia, sonchus asper, galium aparine, lathyrus tuberosus, papaver rhoeas, veronica hederifolia