Betula nigra, a species of birch native to the eastern United States from New Hampshire west to southern Minnesota, and south to northern Florida and east Texas
Sambucus nigra | Centaurea nigra | Pinus nigra | Juglans nigra | Fraxinus nigra | Carex nigra | Brassica nigra | Betula pubescens | Populus nigra | Betula ermanii | Tinea nigra | Prosopis nigra | Porta Nigra | ''Populus nigra'', originating in the United States from plantings by André Michaux | M. nigra | Mined leaf of ''Centaurea nigra | Leaf of ''Ballota nigra | Hoplocorypha nigra | Gila nigra | Betula utilis | Betula populifolia | Betula pendula | Betula nigra | A shoot of ''Centaurea nigra |