aira praecox, teesdalia nudicaulis, poa annua, rumex acetosella, senecio sylvaticus, agrostis capillaris, arenaria serpyllifolia, cerastium holosteoides, cytisus scoparius, drabella muralis, ornithopus perpusillus, sagina procumbens, saxifraga tridactylites, scleranthus annuus, trifolium dubium, veronica arvensis