centaurea cyanus, setaria viridis, setaria pumila, agrostemma githago, arenaria serpyllifolia, convolvulus arvensis, erigeron canadensis, lysimachia vulgaris, myosotis arvensis, vicia tetrasperma, viola arvensis, apera spica-venti, bromus tectorum, filago lutescens, galeopsis angustifolia, galium aparine, legousia speculum-veneris, scleranthus annuus, trifolium arvense, valerianella rimosa, vicia cracca, vicia sativa, artemisia campestris, artemisia vulgaris