artemisia vulgaris, elymus repens, equisetum arvense, erigeron canadensis, lolium perenne, melilotus albus, melilotus officinalis, achillea millefolium, cirsium arvense, dactylis glomerata, holcus lanatus, plantago lanceolata, silene latifolia, diplotaxis tenuifolia, pulicaria dysenterica, rumex crispus, urtica dioica