calamagrostis epigejos, elymus repens, artemisia vulgaris, cirsium arvense, erigeron canadensis, poa compressa, poa pratensis, amaranthus retroflexus, bromus sterilis, carduus acanthoides, chenopodium album, convolvulus arvensis, melilotus officinalis, reseda lutea, tanacetum vulgare, tripleurospermum inodorum