text: hordeum distichon, lamium purpureum, thlaspi arvense, arabidopsis thaliana, argentina anserina, buglossoides arvensis, capsella bursa-pastoris, cirsium arvense, convolvulus arvensis, elymus repens, euphorbia helioscopia, fallopia convolvulus, fumaria officinalis, lamium amplexicaule, matricaria discoidea, papaver rhoeas, persicaria lapathifolia, poa pratensis, sinapis arvensis, stellaria media, trifolium pratense, tripleurospermum inodorum, veronica arvensis, veronica persica, vicia tetrasperma, viola arvensis, galinsoga quadriradiata, geranium pusillum, lipandra polysperma, mentha arvensis, raphanus raphanistrum, sonchus oleraceus, stachys palustris, veronica agrestis