lepidium ruderale, matricaria chamomilla, polygonum aviculare, achillea setacea, agropyron cristatum, amaranthus retroflexus, atriplex oblongifolia, atriplex tatarica, bromus sterilis, capsella bursa-pastoris, carduus acanthoides, cirsium arvense, descurainia sophia, erigeron canadensis, hordeum murinum, lepidium draba, lolium perenne, setaria pumila, thlaspi arvense, vicia hirsuta