The sheep of the Rocky Mountains and of the bad lands (O. canadensis and O. canadensis auduboni) are those with which we are most familiar.

In the opposite direction, the nearer we get to Bering's Straits the closer is the resemblance to the American wapiti, until the splendid species from the Altai Mountains (C. canadensis asiaticus), and Luehdorf's deer (C. c. luehdorfi) from Manchuria, are regarded only as sub-species of the eastern American form, which they approach through C. c. occidentalis of Oregon and the northwestern Pacific Coast.

There are several varieties, including A. canadensis rotundifolia, A. canadensis oblongifolia, and

A. canadensis oligocarpa, the latter being by some botanists ranked as a species.

There are several varieties, including A. canadensis rotundifolia, A. canadensis oblongifolia, and