setaria pumila, arenaria serpyllifolia, medicago lupulina, anthemis arvensis, camelina microcarpa, centaurea cyanus, equisetum arvense, fallopia convolvulus, lysimachia arvensis, trifolium arvense, bromus commutatus, buglossoides arvensis, cirsium arvense, convolvulus arvensis, draba verna, elymus repens, erigeron canadensis, galeopsis ladanum, lathyrus pratensis, polygonum aviculare, setaria viridis, sonchus arvensis, veronica triphyllos, vicia villosa, viola arvensis, scleranthus annuus