tripleurospermum inodorum, barbula unguiculata, descurainia sophia, sisymbrium altissimum, ceratodon purpureus, gemmabryum dichotomum, lepidium ruderale, polygonum aviculare, salsola tragus, streblotrichum convolutum, tussilago farfara, bryum argenteum, cerastium holosteoides, poa annua