cirsium arvense, amaranthus retroflexus, ambrosia artemisiifolia, bromus tectorum, erigeron canadensis, galium aparine, matricaria chamomilla, sisymbrium loeselii, stachys recta, atriplex tatarica, bromus squarrosus, capsella bursa-pastoris, convolvulus arvensis, cyclachaena xanthiifolia, datura stramonium, erigeron acris, euphorbia esula, polygonum aviculare, artemisia santonicum, carduus acanthoides, hyoscyamus niger