bryum argenteum, chaenorhinum minus, bromus tectorum, digitaria sanguinalis, dysphania botrys, funaria hygrometrica, sisymbrium officinale, arabidopsis arenosa, arenaria serpyllifolia, atriplex patula, berteroa incana, capsella bursa-pastoris, carex hirta, chenopodium album, erigeron canadensis, festuca rubra, lepidium ruderale, matricaria discoidea, medicago lupulina, poa compressa, sedum acre, stellaria media, streblotrichum convolutum, veronica arvensis, achillea millefolium, galinsoga parviflora