secale cereale, anthemis arvensis, centaurea cyanus, apera spica-venti, vicia hirsuta, viola arvensis, agrostis stolonifera, arenaria serpyllifolia, draba verna, elymus repens, equisetum arvense, lycopsis arvensis, myosotis arvensis, scleranthus annuus, stellaria media, vicia tetrasperma, vicia villosa