text: convolvulus arvensis, digitaria ciliaris, setaria verticillata, amaranthus hybridus, amaranthus retroflexus, chenopodium album, datura stramonium, echinochloa crus-galli, eragrostis cilianensis, hibiscus trionum, polygonum aviculare, salsola tragus, setaria pumila, sonchus asper, xanthium spinosum, xanthium strumarium