aira praecox, arenaria serpyllifolia, cerastium semidecandrum, logfia minima, agrostis capillaris, agrostis vinealis, draba verna, erigeron canadensis, rumex acetosella, scleranthus polycarpos, senecio vernalis, achillea millefolium, hypochaeris radicata, tanacetum vulgare, trifolium arvense, medicago lupulina, pinus sylvestris