text: polygonum aviculare, amaranthus retroflexus, atriplex patula, capsella bursa-pastoris, echinochloa crus-galli, lolium perenne, artemisia vulgaris, matricaria discoidea, persicaria maculosa, plantago major, poa annua, stellaria media, thlaspi arvense, tripleurospermum inodorum, descurainia sophia, lamium purpureum