Juniperus occidentalis By Matt Young September 2, 2013 12:00 MST Photograph by James Rice. Photography contest, Honorable Mention. Juniperus occidentalis var. australis – Sierra juniper. Mr. Rice writes, “This specimen is called “the Bennett juniper.” It is located in the Stanislaus National Forest of California, and is considered the oldest and largest example at possibly 3000 years old, with a height of 26 m and a diameter of 3.88 m. “More about J. occidentalis can be found here . “More about the Bennett juniper can be found here and here.”