polygonum aviculare, ambrosia artemisiifolia, amaranthus retroflexus, atriplex tatarica, convolvulus arvensis, cyclachaena xanthiifolia, erigeron canadensis, matricaria chamomilla, arctium tomentosum, bromus squarrosus, capsella bursa-pastoris, cichorium intybus, cirsium arvense, hyoscyamus niger, lathyrus tuberosus, stachys recta, artemisia santonicum, carduus acanthoides