chenopodium album, chenopodium opulifolium, cynodon dactylon, erigeron bonariensis, hordeum murinum, xanthium spinosum, amaranthus deflexus, bromus madritensis, dysphania ambrosioides, dysphania multifida, polygonum aviculare, rostraria cristata, chenopodiastrum murale, convolvulus arvensis, crepis bursifolia, erigeron canadensis, poa annua, portulaca oleracea, setaria verticillata, spergularia rubra, verbena officinalis