bromus sterilis, capsella bursa-pastoris, bromus tectorum, convolvulus arvensis, artemisia vulgaris, carduus acanthoides, hordeum murinum, lepidium draba, medicago lupulina, poa angustifolia, poa annua, erigeron canadensis, lapsana communis, sisymbrium officinale, sonchus oleraceus, lolium perenne, tripleurospermum inodorum, viola arvensis