aira praecox, ceratodon purpureus, ornithopus perpusillus, polytrichum piliferum, sagina procumbens, agrostis capillaris, cerastium semidecandrum, logfia minima, poa annua, rumex acetosella, veronica arvensis, aira caryophyllea, arabidopsis thaliana, brachythecium albicans, cerastium fontanum, gnaphalium sylvaticum, plantago major