_:b75898464 . . _:b75898464 . _:b76395863 . _:b76534095 . _:b76534095 "wfo-0000330708" . . "Betula alba var. pontica hort. ex P.Watson, 1825" . _:b76534095 . _:b76534095 "WFO (World Flora Online) id" . _:b76254459 . _:b76254459 . "Betula alba var. pontica" . "77265282-1" . _:b75898464 . . _:b76395863 . . "5331736" . "wfo-0000330708" . . "1025310" . "hort. ex P.Watson, 1825" . . . _:b76254459 "IPNI id" . _:b76395863 . . "50271274" . _:b76395863 "TROPICOS id" . _:b75898464 "GBIF id" . . _:b76395863 "50271274" . . _:b76254459 "77265282-1" . _:b75898464 "5331736" . "Betula alba var. pontica" . . _:b76534095 . . _:b76254459 .