matricaria chamomilla, herniaria hirsuta, sagina apetala, spergularia rubra, helminthotheca echioides, juncus hybridus, lysimachia arvensis, plantago weldenii, polycarpon tetraphyllum, polygonum aviculare, rostraria cristata, symphyotrichum squamatum, crepis commutata, erigeron bonariensis, hirschfeldia incana, lythrum hyssopifolia, sonchus oleraceus, verbena officinalis