poa annua, cardamine hirsuta, ceratodon purpureus, plantago uliginosa, tortula muralis, trifolium repens, veronica arvensis, agrostis stolonifera, bryum argenteum, capsella bursa-pastoris, lamium amplexicaule, matricaria discoidea, senecio vulgaris, sonchus oleraceus, streblotrichum convolutum, vicia sativa, chenopodium album, erigeron canadensis, polygonum aviculare, saxifraga tridactylites