chenopodium album, medicago sativa, amaranthus retroflexus, bromus tectorum, carduus acanthoides, fallopia convolvulus, lysimachia arvensis, medicago lupulina, tripleurospermum inodorum, achillea millefolium, amaranthus powellii, artemisia vulgaris, chaenorhinum minus, cirsium arvense, crepis biennis, daucus carota, echium vulgare, euphorbia helioscopia, hyoscyamus niger, plantago major, polygonum aviculare, reseda lutea, rumex crispus, silene latifolia, stachys annua, stellaria media