ceratodon purpureus, polycnemum arvense, tortula muralis, achillea millefolium, setaria viridis, trifolium arvense, bryum argenteum, filago arvensis, plantago lanceolata, potentilla argentea, scleranthus perennis, anthemis arvensis, capsella bursa-pastoris, potentilla verna, herniaria glabra, hypochaeris radicata, psammophiliella muralis