text: convolvulus arvensis, amaranthus retroflexus, digitaria ciliaris, setaria verticillata, chenopodiastrum hybridum, chenopodium album, cynodon dactylon, datura stramonium, erigeron acris, hibiscus trionum, polygonum aviculare, rubus caesius, salsola tragus, setaria pumila, sonchus asper, xanthium spinosum