poa annua, sagina apetala, brachythecium albicans, ceratodon purpureus, draba verna, hypochaeris glabra, plantago lanceolata, potentilla argentea, sedum rubens, veronica acinifolia, agrostis capillaris, arabidopsis thaliana, berteroa incana, bryum argenteum, cerastium glomeratum, herniaria glabra, hypnum cupressiforme, scleranthus polycarpos, veronica arvensis