ambrosia artemisiifolia, bassia scoparia, amaranthus retroflexus, artemisia annua, bromus tectorum, capsella bursa-pastoris, cirsium vulgare, crepis foetida, erigeron canadensis, hordeum murinum, lactuca serriola, lappula squarrosa, lepidium ruderale, linaria vulgaris, melilotus officinalis, papaver rhoeas, rumex crispus, tragopogon dubius, tripleurospermum inodorum, viola arvensis