Introductory
SPECIES: Pinus aristata | Rocky Mountain Bristlecone Pine 



ABBREVIATION : 
PINARI

SYNONYMS : 
   Pinus balfouriana var. aristata (Engelm.) Engelm.


SCS PLANT CODE : 
   PIAR


COMMON NAMES : 
   Rocky Mountain bristlecone pine
   Colorado bristlecone pine
   hickory pine


TAXONOMY : 
Bailey designated the western populations of bristlecone pine as Pinus
longaeva D. K. Bailey (Great Basin bristlecone pine) and reserved the
older name of P. aristata Engelm. (Rocky Mountain bristlecone pine) for
the eastern populations.  Pinus balfouriana var. aristata (Engelm.)
Engelm. is included in P. longaeva.

Great Basin and Rocky Mountain bristlecone pines differ in several
important characteristics:  chemistry, needle structure, and cone
morphology [2].  The Colorado-Green River drainage has separated them
for millions of years, and crosses between the two species are
relatively unsuccessful [5].  Today they are separated by 160 miles (260
km).


LIFE FORM : 
Tree

FEDERAL LEGAL STATUS : 
No special status

OTHER STATUS : 
NO-ENTRY


COMPILED BY AND DATE : 
Kathy Ahlenslager  November 1986


LAST REVISED BY AND DATE : 
Kathy Ahlenslager  December 1987


AUTHORSHIP AND CITATION : 
Ahlenslager, Kathleen E. 1986. Pinus aristata. In: Remainder of Citation

Related categories for Species: Pinus aristata | Rocky Mountain Bristlecone Pine