Yellow Cottonwood (Ark., Ia., Neb.).

Big Cottonwood (Miss., Neb.).

Whitewood (Ia.).

Cotton Tree (N. Y.).

Necklace Poplar (Tex., Col.).

Broadleaved Cottonwood (Colo.).

Locality.

Canada to Florida, westward intermittently to Rocky Mountains.

Features of Tree.

Seventy-five to one hundred feet in height, four to five feet in diameter, occasionally much larger. Long catkins distribute cotton-like fibres.