setaria pumila, medicago lupulina, arenaria serpyllifolia, trifolium arvense, anthemis arvensis, camelina microcarpa, centaurea cyanus, cirsium arvense, equisetum arvense, lysimachia arvensis, lysimachia vulgaris, bromus racemosus, buglossoides arvensis, convolvulus arvensis, draba verna, elymus repens, erigeron canadensis, galeopsis angustifolia, lathyrus pratensis, sonchus arvensis, veronica triphyllos, vicia cracca, viola arvensis, scleranthus annuus