cynodon dactylon, convolvulus arvensis, lactuca serriola, achillea setacea, atriplex tatarica, chenopodium album, cichorium intybus, cirsium arvense, crepis foetida, erigeron canadensis, galium humifusum, lactuca saligna, plantago lanceolata, poa angustifolia, polygonum aviculare, tripleurospermum inodorum