hordeum murinum, lolium perenne, achillea setacea, atriplex tatarica, bromus squarrosus, bromus tectorum, capsella bursa-pastoris, carduus acanthoides, carduus nutans, convolvulus arvensis, descurainia sophia, erodium cicutarium, marrubium vulgare, poa angustifolia, polygonum aviculare, torilis arvensis