erigeron canadensis, elymus repens, sonchus arvensis, amaranthus retroflexus, capsella bursa-pastoris, centaurea cyanus, cirsium arvense, convolvulus arvensis, crepis foetida, delphinium consolida, descurainia sophia, erigeron annuus, erodium cicutarium, fallopia convolvulus, galeopsis tetrahit, galinsoga parviflora, lepidium draba, linaria vulgaris, plantago major, poa annua, polygonum aviculare, senecio vernalis, setaria viridis, sinapis arvensis, spergula arvensis, stellaria media, trifolium arvense, tripleurospermum inodorum, veronica persica