用ponderosa pine造句子，“ponderosa pine”造句

Callaham and Liddicoet found an elevational cline in ponderosa pine from Northern California.

tall symmetrical pine of western North America having long blue-green needles in bunches of 3 and elongated cones on spreading somewhat pendulous branches; sometimes classified as a variety of ponderosa pine.

Above, I could see only a strip of starry sky, so close were the walls of the canyon and so dense the growth of ponderosa pine.

A boat and water skier cruise by on one of several lakes located in South Dakota's Black Hills. The Black Hills get their name from the dark cloak of ponderosa pine trees that cover the landscape.

The Spot: a cloud formation converges with sandstone and a ponderosa pine on the east side of Zion National park.