text: convolvulus arvensis, digitaria ciliaris, setaria pumila, setaria verticillata, amaranthus hybridus, amaranthus retroflexus, chenopodiastrum hybridum, chenopodium album, echinochloa crus-galli, eragrostis cilianensis, eragrostis minor, erigeron acris, hibiscus trionum, polygonum aviculare, rubus caesius, salsola tragus, sonchus asper, xanthium spinosum