papaver rhoeas, cichorium intybus, phalaris minor, crepis capillaris, cynodon dactylon, euphorbia helioscopia, festuca geniculata, helminthotheca echioides, hordeum murinum, lolium rigidum, medicago polymorpha, ranunculus muricatus, torilis nodosa, anacyclus radiatus, anthemis arvensis, avena sterilis, bromus hordeaceus, convolvulus arvensis, crepis vesicaria, filago lutescens, fumaria bastardii, hedypnois rhagadioloides, lactuca serriola, medicago orbicularis, pallenis spinosa, polypogon monspeliensis, rumex pulcher, urospermum picroides