text: portulaca oleracea, cynodon dactylon, polygonum aviculare, tribulus terrestris, xanthium strumarium, amaranthus deflexus, amaranthus retroflexus, atriplex patula, cakile maritima, centaurea calcitrapa, chenopodium album, erigeron bonariensis, heliotropium europaeum, rostraria cristata, salsola kali, scolymus hispanicus, solanum nigrum