"Polygonum hygrogenes" . . . . "51501" . "Gand., 1876" . "Polygonum hygrogenes Gand., 1876" . _:b76030682 "5652248" . _:b76030682 . "114746" . "5652248" . . "Polygonum hygrogenes" . _:b75442929 "BDTFX id" . _:b75442929 . _:b75442929 . _:b76030682 "GBIF id" . _:b75442929 "51501" . _:b75442929 . . . . _:b76030682 . . _:b76030682 .