hordeum vulgare, cirsium arvense, stachys palustris, stellaria media, achillea millefolium, anthemis arvensis, apera spica-venti, centaurea cyanus, convolvulus arvensis, elymus repens, fallopia convolvulus, galium aparine, myosotis arvensis, oxalis stricta, persicaria lapathifolia, persicaria maculosa, plantago lanceolata, silene latifolia, sinapis arvensis, sonchus arvensis, thlaspi arvense