text: amaranthus retroflexus, chenopodium album, eragrostis barrelieri, portulaca oleracea, chondrilla juncea, lobularia maritima, tribulus terrestris, calendula arvensis, cynodon dactylon, digitaria sanguinalis, erodium cicutarium, fallopia convolvulus, heliotropium europaeum, hypochaeris radicata, ornithopus compressus, spergula arvensis, symphyotrichum pilosum