artemisia absinthium, lolium perenne, matricaria chamomilla, medicago lupulina, polygonum aviculare, sisymbrium officinale, achillea millefolium, agrostis capillaris, artemisia vulgaris, berteroa incana, erigeron canadensis, galeopsis tetrahit, lepidium ruderale, matricaria discoidea, oenothera biennis, plantago major, poa annua, senecio viscosus, sisymbrium orientale, trifolium repens, tripleurospermum inodorum, urtica dioica