artemisia vulgaris, bromus hordeaceus, calamagrostis epigejos, elymus repens, erigeron canadensis, melilotus albus, achillea millefolium, epilobium parviflorum, fallopia convolvulus, matricaria discoidea, oenothera biennis, poa compressa, poa pratensis, senecio viscosus, tripleurospermum inodorum