betula pendula, poa annua, plantago major, gemmabryum dichotomum, herniaria glabra, spergularia rubra, medicago lupulina, erigeron canadensis, geranium pusillum, sagina procumbens, stellaria media, bryum argenteum, cardamine hirsuta, ceratodon purpureus, matricaria discoidea, pseudocrossidium hornschuchianum, sisymbrium officinale, veronica arvensis