text: arenaria serpyllifolia, capsella bursa-pastoris, medicago lupulina, secale cereale, centaurea cyanus, crepis tectorum, elymus repens, fallopia convolvulus, silene vulgaris, vicia hirsuta, viola arvensis, chenopodium album, erysimum cheiranthoides, polygonum aviculare, setaria viridis, sinapis arvensis, stellaria media, thlaspi arvense, tripleurospermum inodorum