text: centaurea cyanus, cirsium arvense, sonchus arvensis, capsella bursa-pastoris, chenopodiastrum hybridum, elymus repens, fallopia convolvulus, hordeum vulgare, lamium purpureum, polygonum aviculare, tripleurospermum inodorum, veronica persica, vicia cracca, viola arvensis, euphorbia helioscopia, persicaria lapathifolia