text: chenopodium album, fallopia convolvulus, thlaspi arvense, capsella bursa-pastoris, centaurea cyanus, elymus repens, fumaria officinalis, persicaria maculosa, polygonum aviculare, sonchus oleraceus, stellaria media, vicia tetrasperma, viola arvensis, artemisia vulgaris, cirsium arvense, descurainia sophia, echium vulgare, galium aparine, mentha arvensis, persicaria lapathifolia, sonchus arvensis, stachys palustris, tripleurospermum inodorum