|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Pinaceae||View Description||Dichotomous Key|
|Genus: Pinus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Pinus quadrifolia Parl. ex Sudw.
Stem: trunk < 16 m, < 70 cm wide; mature bark red-brown. Leaf: (3)4(5) per bundle, 2--5 cm, curved, blue-green, adaxially +- white; sheath deciduous. Seed Cone: spreading, 4--8 cm, +- spheric, light brown; stalk < 1 cm; scale tip knobs < 15 mm, angled, truncate. Seed: wing persistent on scale.
Ecology: Pine forest, pinyon/juniper woodland, chaparral; Elevation: 1100--1800 m. Bioregional Distribution: s PR, SnJt; Distribution Outside California: northern Baja California.
Unabridged Note: May be of hybrid origin. Trees with leaves generally 5 per bundle have been described as Pinus juarezensis Lanner, treated as a syn of Pinus quadrifolia in FNANM.
eFlora Treatment Author: J. Robert Haller & Nancy J. Vivrette
Jepson Online Interchange
Previous taxon: Pinus ponderosa var. washoensis
Next taxon: Pinus radiata
Citation for this treatment: J. Robert Haller & Nancy J. Vivrette 2017. Pinus quadrifolia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=38298, accessed on February 22, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 22, 2017.