text: portulaca oleracea, convolvulus arvensis, amaranthus hybridus, heliotropium europaeum, polygonum aviculare, setaria verticillata, amaranthus retroflexus, chenopodium album, cirsium arvense, datura stramonium, digitaria sanguinalis, eragrostis cilianensis, euphorbia tommasiniana, hibiscus trionum, polygonum bellardii, rubus caesius, salsola kali, setaria pumila, solanum nigrum