ponderosa
(tree)美國黃松; 美國黃松木
1. common and widely distributed tall timber pine of western North America having dark green needles in bunches of 2 to 5 and thick bark with dark brown plates when mature
Callaham and Liddicoet found an elevational cline in ponderosa pine from Northern California.
卡拉漢和利狄柯特發現加利福尼亞北部產的黃松有一海拔漸變群.