text: convolvulus arvensis, arenaria serpyllifolia, capsella bursa-pastoris, chenopodium album, galeopsis tetrahit, polygonum aviculare, trifolium arvense, viola arvensis, buglossoides arvensis, fallopia convolvulus, galeopsis ladanum, lapsana communis, scleranthus annuus, thlaspi arvense, centaurea cyanus, lycopsis arvensis