. "Ludwigia sect. Cryptosperma P.H.Raven, 1964" . _:b76393861 "TROPICOS id" . . "50157177" . . . "Ludwigia sect. Cryptosperma" . . "Ludwigia sect. Cryptosperma" . _:b76393861 . "921157" . _:b76393861 "50157177" . _:b76393861 . . . . "Ludwigia sect. Cryptosperma" . _:b76393861 . "P.H.Raven, 1964" .