calamagrostis epigejos, elymus repens, agrostis gigantea, amaranthus retroflexus, atriplex oblongifolia, bromus sterilis, carduus acanthoides, chenopodium album, cirsium arvense, convolvulus arvensis, erigeron canadensis, melilotus officinalis, poa compressa, polygonum aviculare, reseda lutea, tripleurospermum inodorum