the red oak, Quercus rubra.

plural of northern red oak

Zizania palustris, a species of wild rice, native to Minnesota, Wisconsin, and Michigan, and Canada north and west of the Great Lakes.

Athyrium filix-femina, native to the temperate northern hemisphere.

A group of dialects of the English language found in Northern England.

plural of northern house martin

The common house martin (Delichon urbicum).

plural of northern fur seal

A fur seal of the species Callorhinus ursinus (formerly Arctocephalus ursinus), of the northern Pacific.

plural of northern fur-seal