equisetum arvense, erigeron canadensis, arabidopsis thaliana, arenaria serpyllifolia, capsella bursa-pastoris, cerastium holosteoides, chenopodium album, cirsium arvense, convolvulus arvensis, descurainia sophia, lactuca serriola, poa trivialis, setaria pumila, sonchus arvensis, stellaria aquatica, vicia sativa, viola arvensis