galinsoga parviflora, amaranthus retroflexus, digitaria sanguinalis, capsella bursa-pastoris, chenopodium album, convolvulus arvensis, erigeron canadensis, lipandra polysperma, oxalis stricta, polygonum aviculare, portulaca oleracea, rorippa sylvestris, scrophularia nodosa, senecio vulgaris, stellaria media, veronica persica