chenopodium album, dysphania botrys, erigeron canadensis, helianthemum salicifolium, hordeum murinum, lepidium draba, solanum nigrum, tribulus terrestris, amaranthus retroflexus, artemisia vulgaris, bromus tectorum, capsella bursa-pastoris, convolvulus arvensis, melilotus officinalis, onopordum acanthium, polygonum aviculare, reseda lutea