Common Names

Taxonomic notes

"Engelmann (1879) stressed the difference in leaf number with P. ponderosa (5 vs. 3), but found it otherwise very similar to certain forms of that species. Shaw (1909, 1914) reduced it to a variety of P. ponderosa when it became known that the 'leaf-fascicles (are) heteromerous, with the larger number in the southern parts of its range (referring to P. ponderosa s.l.)... P. arizonica has often been treated under [p. ponderosa] as a variety, but more recent treatments recognize it as a distinct species, with possible introgression in Arizona and New Mexico" (1).

Description

Range

Big Tree

Oldest

Dendrochronology

Ethnobotany

Observations

Remarks

Citations

This page is from the Gymnosperm Database
URL: http://www.geocities.com/RainForest/Canopy/2285/pi/pin/arizonica.htm
Edited by Christopher J. Earle
E-mail:earlecj@earthlink.net
Last modified on 19-Dec-98