. "Betula papyrifera var. macrostachya" . . _:b76509975 . . _:b76264638 . "32211-2" . _:b76509975 . "Fernald, 1945" . _:b76264638 . _:b76457565 "TROPICOS id" . _:b76509975 . _:b76116840 . . _:b76457565 "3600140" . . _:b76116840 "GBIF id" . _:b76457565 . _:b76116840 "5332125" . "Betula papyrifera var. macrostachya Fernald, 1945" . . "3600140" . _:b76264638 . "Betula papyrifera var. macrostachya" . . _:b76509975 "VASCAN id" . . _:b76116840 . . "5332125" . _:b76116840 . . _:b76457565 . _:b76264638 "IPNI id" . _:b76509975 "12842" . _:b76264638 "32211-2" . "772481" . _:b76457565 . . "12842" .