SPECIES:  Pinus quadrifolia

• Introductory
• Distribution and Occurrence
• Management Considerations
• Botanical and Ecological Characteristics
• Fire Ecology
• Fire Effects
• References

Introductory
SPECIES: Pinus quadrifolia



AUTHORSHIP AND CITATION : 
Esser, Lora L. 1993. Pinus quadrifolia. In: Fire Effects Information System, [Online]. 
U.S. Department of Agriculture, Forest Service, 
Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). 
Available: http://www.fs.fed.us/database/feis/ [].




ABBREVIATION : 
PINQUA

SYNONYMS : 
NO-ENTRY


SCS PLANT CODE : 
   PIQU


COMMON NAMES : 
   Parry pinyon
   four-needled pinyon
   nut pine


TAXONOMY : 
The currently accepted scientific name of Parry pinyon is Pinus
quadrifolia Parl. [7,24,32].  It is a member of the subgenus Haploxylon,
subsection Cembroides [2,26].  Lanner [15] reduced Parry pinyon to
hybrid status, (P. x quadrifolia Parl.), based upon studies of needle
number, resin canal number, twig hairiness, and stomate position.  He
concluded that Parry pinyon is the result of hybridization between
singleleaf pinyon (Pinus monophylla) and a heretofore unrecognized
5-needle pinyon now named Sierra Juarez pinyon (Pinus juarezensis).
There are divergent opinions among botanists and taxonomists regarding
these conclusions.  Perry [26] recognizes Parry pinyon as a separate
species pending further studies.  This paper will follow Perry's
taxonomy.   Parry pinyon hybridizes with P. monophylla and P.
juarzensis.  Lanner [15] also suggests that Parry pinyon crosses with P.
edulis and P. cembroides.  There are no recognized varieties, 
subspecies, or forms of Parry pinyon.
   


LIFE FORM : 
Tree

FEDERAL LEGAL STATUS : 
No special status

OTHER STATUS : 
NO-ENTRY

Complete FEIS review for Pinus quadrifolia

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