poa annua, agrostis gigantea, polygonum aviculare, trifolium repens, tripleurospermum inodorum, alopecurus aequalis, argentina anserina, bryum argenteum, echinochloa crus-galli, elymus repens, erigeron canadensis, lolium perenne, medicago lupulina, plantago major, tussilago farfara, atriplex patula, cirsium arvense, epilobium tetragonum, glechoma hederacea, matricaria discoidea, melilotus albus, oxybasis rubra, plantago uliginosa, salsola tragus, sonchus asper