text: portulaca oleracea, digitaria sanguinalis, capsella bursa-pastoris, galinsoga parviflora, lolium perenne, setaria pumila, setaria viridis, tripleurospermum inodorum, amaranthus blitoides, arctium tomentosum, bromus tectorum, chenopodium album, diplotaxis muralis, erigeron canadensis, galinsoga quadriradiata, lepidium ruderale, medicago lupulina, stellaria media, tagetes erecta, viola arvensis, atriplex patula