centaurea cyanus, scleranthus annuus, tripleurospermum inodorum, stellaria media, viola arvensis, aphanes arvensis, arenaria serpyllifolia, capsella bursa-pastoris, cirsium arvense, euphorbia helioscopia, fallopia convolvulus, lamium amplexicaule, lycopsis arvensis, myosotis arvensis, persicaria lapathifolia, persicaria maculosa, poa annua, polygonum aviculare, spergula arvensis, thlaspi arvense, veronica agrestis, veronica arvensis, veronica persica