_:b76199933 . . . _:b76199933 . . . . "Populus nigra subsp. monilifera" . . "9367491" . _:b75457340 . _:b76199933 "9367491" . "Populus nigra subsp. monilifera (Aiton) Douin, 1929" . "Populus nigra subsp. monilifera" . "(Aiton) Douin, 1929" . . _:b75457340 . "139171" . _:b76199933 "GBIF id" . _:b75457340 "52033" . _:b75457340 "BDTFX id" . "52033" . _:b75457340 . _:b76199933 . .