veronica hederifolia, arenaria serpyllifolia, lamium amplexicaule, oxalis stricta, stellaria media, trifolium campestre, acer negundo, acer platanoides, arabidopsis thaliana, bromus tectorum, cerastium holosteoides, crepis tectorum, echinochloa crus-galli, erigeron canadensis, lamium purpureum, medicago lupulina, papaver dubium, plantago major, setaria viridis, veronica arvensis, veronica persica