polygonum aviculare, bromus tectorum, poa angustifolia, capsella bursa-pastoris, erigeron canadensis, matricaria chamomilla, medicago lupulina, setaria viridis, cirsium arvense, digitaria ischaemum, elymus repens, chenopodium album, plantago lanceolata, sonchus arvensis, sonchus oleraceus, tripleurospermum inodorum, bromus hordeaceus, falcaria vulgaris, sinapis arvensis, trifolium repens, atriplex patula, avena fatua, carduus acanthoides