secale cereale, centaurea cyanus, odontites vulgaris, cirsium arvense, agrostemma githago, anthemis arvensis, armeria arenaria, arnoseris minima, bromus hordeaceus, centaurea scabiosa, cerastium arvense, conopodium majus, echium vulgare, galeopsis segetum, galeopsis tetrahit, hypochaeris radicata, polygonum aviculare, rhinanthus minor, tripleurospermum inodorum, vicia cracca, vicia sativa, viola arvensis