hordeum vulgare, silene vulgaris, arenaria serpyllifolia, chaenorhinum minus, fumaria officinalis, lysimachia arvensis, viola arvensis, euphorbia helioscopia, galeopsis speciosa, lactuca serriola, lamium amplexicaule, linaria vulgaris, medicago lupulina, stellaria media, tussilago farfara, vicia villosa