portulaca oleracea, amaranthus albus, cynodon dactylon, digitaria sanguinalis, equisetum ramosissimum, heliotropium europaeum, setaria viridis, amaranthus hybridus, chenopodium album, erigeron canadensis, fallopia convolvulus, herniaria glabra, equisetum arvense, persicaria lapathifolia, pteridium aquilinum