hordeum vulgare, bromus hordeaceus, convolvulus arvensis, lolium rigidum, medicago polymorpha, papaver rhoeas, poa compressa, polygonum aviculare, anthemis arvensis, cirsium arvense, fumaria officinalis, galium tricornutum, kickxia spuria, lysimachia arvensis, potentilla reptans, ranunculus arvensis, rumex crispus, veronica polita