The ponderosa is one of the most widely distributed American species of this conifer
Russell T. Graham2 and Theresa B. Jain2 ... 
which is widely distributed in the mountains of the Pacific Coast from British .... 
most infrequent cone crop of any associated conifer (Minore 1979, Graham and 
... forests, the species most often grows on south facing aspects, but can occur in 
small.