portulaca oleracea, amaranthus graecizans, digitaria sanguinalis, equisetum ramosissimum, eragrostis barrelieri, setaria verticillata, sonchus oleraceus, chenopodium album, chenopodium vulvaria, convolvulus arvensis, eragrostis cilianensis, oxalis corniculata, senecio vulgaris, setaria pumila, setaria viridis, sonchus tenerrimus