triticum aestivum, anthemis arvensis, apera spica-venti, centaurea cyanus, stellaria media, viola arvensis, agrostemma githago, arenaria serpyllifolia, buglossoides arvensis, cerastium holosteoides, cirsium arvense, elymus repens, lamium purpureum, medicago lupulina, polygonum aviculare, roemeria argemone, setaria pumila, veronica triphyllos