poa annua, didymodon rigidulus, barbula unguiculata, lolium perenne, capsella rubella, chondrilla juncea, dactylis glomerata, draba verna, gemmabryum caespiticium, matricaria chamomilla, medicago orbicularis, sagina apetala, sherardia arvensis, tortula muralis, veronica arvensis, weissia controversa