ambrosia artemisiifolia, pilosella echioides, cyclachaena xanthiifolia, erigeron canadensis, achillea millefolium, cichorium intybus, convolvulus arvensis, euphorbia seguieriana, lathyrus tuberosus, setaria viridis, tragopogon dubius, cirsium arvense, descurainia sophia, lactuca tatarica, lappula squarrosa, melilotus officinalis, reseda lutea