text: xanthium spinosum, datura stramonium, malva parviflora, silybum marianum, amaranthus deflexus, capsella bursa-pastoris, centaurea calcitrapa, chenopodium opulifolium, cladanthus mixtus, erigeron canadensis, geranium rotundifolium, heliotropium europaeum, polygonum aviculare, sisymbrium officinale