capsella bursa-pastoris, lamium amplexicaule, stellaria media, chenopodium suecicum, galinsoga parviflora, amaranthus powellii, artemisia vulgaris, cirsium arvense, elymus repens, persicaria lapathifolia, thlaspi arvense, tripleurospermum inodorum, urtica urens, veronica persica, veronica polita, carduus crispus, descurainia sophia, erigeron canadensis, geranium pusillum