"Polygonum amphibium var. natans" . "19088" . _:b76473067 . . . "Polygonum amphibium var. natans" . _:b76138754 . _:b76508061 "19088" . _:b76473067 "26001438" . . _:b76473067 . _:b76508061 . . _:b76508061 "VASCAN id" . . "26001438" . _:b76473067 "TROPICOS id" . . _:b76508061 . _:b76138754 . "Michx., 1803" . _:b76138754 "GBIF id" . _:b76138754 "5652439" . . . _:b76138754 . . "5652439" . "Polygonum amphibium var. natans Michx., 1803" . "772916" . . _:b76508061 . _:b76473067 .