cerastium semidecandrum, phleum arenarium, syntrichia ruralis, carex arenaria, koeleria glauca, rubus caesius, sedum acre, aira praecox, arabidopsis thaliana, arenaria serpyllifolia, calamagrostis baltica, corynephorus canescens, draba verna, myosotis ramosissima, poa humilis, silene otites