artemisia vulgaris, convolvulus arvensis, achillea millefolium, apera spica-venti, berteroa incana, calamagrostis epigejos, cirsium arvense, elymus repens, equisetum arvense, erigeron canadensis, medicago lupulina, melilotus albus, melilotus officinalis, plantago lanceolata, silene latifolia, dactylis glomerata, holcus lanatus