calendula officinalis, elymus repens, erigeron canadensis, amaranthus retroflexus, atriplex prostrata, bromus tectorum, chelidonium majus, chenopodium album, convolvulus arvensis, cyclachaena xanthiifolia, diplotaxis muralis, erigeron annuus, hordeum murinum, polygonum aviculare, saponaria officinalis, setaria viridis