text: helminthotheca echioides, cichorium intybus, medicago minima, avena sterilis, bromus hordeaceus, crepis vesicaria, dactylis glomerata, dittrichia viscosa, lolium rigidum, lysimachia arvensis, picris hieracioides, plantago lanceolata, poa bulbosa, poa trivialis, ranunculus repens, trifolium repens, bromus madritensis, convolvulus arvensis, daucus carota, euphorbia helioscopia