melilotus albus, avena barbata, daucus carota, helminthotheca echioides, picris hieracioides, plantago lanceolata, sixalix atropurpurea, symphyotrichum squamatum, agrimonia eupatoria, erigeron canadensis, foeniculum vulgare, hypericum perforatum, medicago sativa, sorghum halepense, trifolium repens, verbascum sinuatum, verbena officinalis