polygonum aviculare, argentina anserina, capsella bursa-pastoris, plantago media, achillea millefolium, cichorium intybus, convolvulus arvensis, erigeron canadensis, hordeum murinum, lactuca saligna, lepidium ruderale, lolium perenne, matricaria chamomilla, poa annua, trifolium repens, tripleurospermum inodorum