Cedrus libani atlantica (Cedrus atlantica). ATLAS CEDAR. Atlas Mountains,
PINACEAE (Pine family)
Widely planted on campus these striking cedars have a distinctive form and color. The needles, about an inch long, are gathered in tufts on short stalks. The cones stand upright on the branches, are barrel shaped, and about 3 inches long. The upright growing tip distinguishes it from the deodar cedar. Atlas cedar may be seen in the Dohrmann Grove on Serra Mall at Lasuen Mall and in the New Guinea Garden.
The blue form, Cedrus libani atlantica ‘Glauca’, can be seen southeast of the Old Union and in front of the Cantor Center (10 feet in girth). Two others are immediately outside the west entrance to the Inner Quad; there are a dozen flanking the closed road north of the intersection of Campus Drive East and Lasuen Street. The large specimen in the lawn in front of Hoover Tower apparently was planted by President Benjamin Harrison in 1891. A fine example of a pendulous blue Atlas cedar is at 849 Pine Hill Road, near Bowdoin Street. In the fall a copious mat of large male cones accumulates below the cedars.
Illustration: McMinn, Howard E. and Evelyn Maino. 1951. An illustrated manual of Pacific coast trees; with lists of trees recommended for various uses on the Pacific coast by H. W. Shepherd. 2d ed. Berkeley, Calif.: University of California Press.
Key to Species
Needles distinctly dark green; uncommon (west of Meyer Library), relatively young trees ......... 1. Cedrus libani.
Needles green to blue-green; numerous and widespread on campus, many old, large specimens
Needles less than 1 inch long, usually distinctly blue-green; cones 2 to 3 inches long; branchlets rarely pendulous ... 2. C. atlantica.
Needles 1 to 2 inches long, green; cones 3 to 5 inches long; branchlets pendulous .......... 3. C. deodara.
Illustrations (links open new windows): Silhouettes from Trees of Stanford & its EnvironsAdditions/Revisions:
Name derivation, genus | species Latin name for cedar | Atlas MountainsRelated material: Canopy Trees for Palo Alto Tree Library