claytonia perfoliata, bryum argenteum, gemmabryum caespiticium, chenopodium album, poa annua, vicia hirsuta, viola tricolor, draba verna, stellaria media, amblystegium serpens, brachythecium rutabulum, capsella bursa-pastoris, cardamine hirsuta, ceratodon purpureus, erigeron canadensis, lamium amplexicaule, lamium purpureum, rumex acetosella