betula nigra betula neoalaskana • betula papyrifera · · · Info · Definitions · Synonyms · Characters · · betula nigra · · Text Common · · Latin · · Scripts 12 · · Length 5 · · Syllables Definitions · · · (noun) birch of swamps and river bottoms throughout the eastern United States having reddish-brown bark. Synonyms: black birch, river birch, red birch, Betula nigra. · · Noun Definition 1 Synonyms · · · black birch · · Synonym 1 river birch · · Synonym 2 red birch · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075