hordeum vulgare, thlaspi arvense, agrostis stolonifera, echinochloa crus-galli, equisetum arvense, fallopia convolvulus, oxalis stricta, persicaria lapathifolia, persicaria maculosa, elymus repens, persicaria hydropiper, stachys palustris, veronica persica, vicia tetrasperma, sinapis arvensis, symphytum officinale