erigeron canadensis, veronica hederifolia, alyssum alyssoides, arenaria serpyllifolia, buglossoides arvensis, lactuca serriola, veronica triphyllos, anthemis arvensis, artemisia absinthium, camelina microcarpa, centaurea cyanus, chenopodium album, convolvulus arvensis, delphinium consolida, descurainia sophia, galium spurium, holosteum umbellatum, lamium amplexicaule, roemeria argemone, vicia sativa, viola arvensis, chondrilla juncea