text: chenopodiastrum murale, chenopodium opulifolium, chenopodium vulvaria, chenopodium album, cynodon dactylon, hordeum murinum, polygonum aviculare, amaranthus deflexus, atriplex prostrata, carduus tenuiflorus, centaurea aspera, convolvulus arvensis, erigeron bonariensis, erigeron canadensis, euphorbia helioscopia, heliotropium curassavicum, poa annua, sisymbrium officinale, sonchus oleraceus, verbascum sinuatum