hordeum distichon, elymus repens, fallopia convolvulus, viola arvensis, anthemis arvensis, centaurea cyanus, cirsium arvense, echium vulgare, equisetum arvense, geranium pusillum, lycopsis arvensis, persicaria lapathifolia, silene latifolia, stellaria media, tripleurospermum inodorum, vicia sativa, festuca rubra