South of Double Mountain the Tehachapi Range has a large rounded crest, whose eastern flank is quite steep.[5]
This crest is the southern terminus of the range of the hybrid Alvord oak, Quercus × alvordiana.[6]
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Twisselmann, Ernest C. (1967). A flora of Kern County, California. University of San Francisco. OCLC678356.
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Hogan, PhD, C. Michael (2008). Stromberg, N. (ed.). "Blue Oak: Quercus douglasii". GlobalTwitcher.com. Archived from the original on 2012-02-28. Retrieved 2009-08-01.