centaurea cyanus, triticum aestivum, apera spica-venti, arenaria serpyllifolia, galium spurium, lycopsis arvensis, polygonum aviculare, secale cereale, viola arvensis, capsella bursa-pastoris, chenopodium album, erodium cicutarium, galium aparine, lapsana communis, medicago lupulina, roemeria argemone, sonchus arvensis, stellaria media, thlaspi arvense, tripleurospermum inodorum, veronica arvensis, vicia villosa, buglossoides arvensis, convolvulus arvensis, delphinium consolida, fallopia convolvulus, neslia paniculata, papaver dubium, silene latifolia, vicia hirsuta