erigeron canadensis, calystegia sepium, daucus carota, helminthotheca echioides, lolium perenne, picris hieracioides, pulicaria dysenterica, sonchus oleraceus, verbena officinalis, crepis capillaris, epilobium parviflorum, hypericum perforatum, lotus tenuis, medicago lupulina, plantago major, tussilago farfara, geranium robertianum, potentilla reptans, trifolium repens