View source for Pinus jeffreyi

{{Treatment/ID
|accepted_name=Pinus jeffreyi
|accepted_authority=Greville & Balfour in A. Murray bis
|publications={{Treatment/Publication
|title=in A. Murray bis,Bot. Exped. Oregon
|place=8: 2 plates. 1853
|year=1853
}}
|common_names=Jeffrey pine
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Pinus deflexa
|authority=Torrey
|rank=species
}} {{Treatment/ID/Synonym
|name=Pinus jeffreyi var. deflexa
|authority=(Torrey) Lemmon
|rank=variety
}} {{Treatment/ID/Synonym
|name=Pinus ponderosa var. jeffreyi
|authority=Balfour ex Vasey
|rank=variety
}}
|hierarchy=Pinaceae;Pinus;Pinus jeffreyi
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Pinaceae]]</div><div class="higher-taxon"><small>genus</small>[[Pinus]]</div><div class="higher-taxon"><small>species</small>[[Pinus jeffreyi]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Trees </b>to 61m; trunk to 2.5m diam., usually straight; crown conic to rounded. <b>Bark</b> yellow-brown to cinnamon, deeply furrowed and cross-checked, forming large irregular scaly plates. <b>Branches</b> spreading-ascending; twigs stout (to 2cm thick), purple-brown, often glaucous, aging rough. <b>Buds</b> ovoid, tan to pale red-brown, 2–3cm, not resinous; scale margins conspicuously fringed. <b>Leaves</b> 3 per fascicle, spreading-ascending, persisting (2–)4–6(–7) years, 12–22(–25)cm × ca. 1.5–2mm, slightly twisted, gray- to yellow-green, all surfaces with fine stomatal lines, margins finely serrulate, apex acute to acuminate; sheath (1–)1.5–2.5(–3)cm, base persistent. <b>Pollen</b> cones lance-cylindric, 20–35mm, yellow to yellow- or purple-brown or yellow. <b>Seed</b> cones maturing in 2 years, shedding seeds and falling soon thereafter, nearly terminal, spreading, slightly asymmetric at base, ovoid-conic before opening, cylindro-ovoid when open, (10–)15–30cm, light red-brown, nearly sessile or on stalks to 0.5cm, abaxial surface of scales not darker than or sharply contrasting in color with adaxial surface, scales in low spirals (as compared to <i>Pinus ponderosa</i>) of 8 or more per row as viewed from side, those of cones just prior to and after cone fall not so spreading and deflexed, thus not so much separated from adjacent scales; apophyses slightly thickened and raised, not keeled; umbo central, slightly raised, with short, slender, reflexed prickle. <b>Seeds</b> ellipsoid-obovoid; body ca. 1cm, brown or gray-brown, mottled darker; wing to 2.5cm. <b>2n</b> =24.</span><!--

-->{{Treatment/Body
|habitat=High, dry montane forests mostly above the Pinus ponderosa zone
|elevation=2000–2500m
|distribution=Calif.;Nev.;Oreg.;Mexico in Baja California.
|discussion=<p><i>Pinus jeffreyi</i> has a form very similar to that of <i>P. ponderosa</i>, but it is a smaller species when compared with sympatric populations of the latter. It is cut and sold under the same name as <i>P. ponderosa</i>, but the sweetish odor of the fresh-cut wood contrasts sharply with the turpentine odor of ponderosa pine. The resin chemistry of the two species is significantly different.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pinus jeffreyi
|authority=Greville & Balfour in A. Murray bis
|rank=species
|parent rank=genus
|synonyms=Pinus deflexa;Pinus jeffreyi var. deflexa;Pinus ponderosa var. jeffreyi
|basionyms=
|family=Pinaceae
|habitat=High, dry montane forests mostly above the Pinus ponderosa zone
|elevation=2000–2500m
|distribution=Calif.;Nev.;Oreg.;Mexico in Baja California.
|reference=None
|publication title=in A. Murray bis,Bot. Exped. Oregon
|publication year=1853
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V2/V2_779.xml
|genus=Pinus
|species=Pinus jeffreyi
}}<!--

-->[[Category:Treatment]][[Category:Pinus]]