sisymbrium altissimum, achillea millefolium, chenopodium album, tussilago farfara, artemisia vulgaris, chaenorhinum minus, erysimum cheiranthoides, galinsoga parviflora, medicago lupulina, persicaria maculosa, poa annua, polygonum aviculare, senecio viscosus, senecio vulgaris, sisymbrium loeselii, trifolium repens, tripleurospermum inodorum