hordeum murinum, dysphania ambrosioides, lolium perenne, plantago major, poa annua, trifolium repens, carduus pycnocephalus, dactylis glomerata, diplotaxis tenuifolia, erigeron bonariensis, helminthotheca echioides, lepidium graminifolium, lolium rigidum, medicago lupulina, rumex pulcher, trifolium pratense, verbena officinalis