View source for Pinus taeda

{{Treatment/ID
|accepted_name=Pinus taeda
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 1000. 1753
|year=1753
}}
|common_names=Loblolly pine
|basionyms=
|synonyms=
|hierarchy=Pinaceae;Pinus;Pinus taeda
|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 taeda]]</div></div>
|volume=Volume 2
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="tree some measurement"><b>Trees </b>to 46m;</span> <span class="statement" id="st-d0_s1" data-properties="trunk diameter;trunk course;shoot derivation">trunk to 1.6m diam., usually straight, without adventitious shoots;</span> <span class="statement" id="st-d0_s2" data-properties="crown shape;crown shape;crown shape">crown broadly conic to rounded.</span> <span class="statement" id="st-d0_s3" data-properties="bark coloration;bark count;plate shape;plate shape;plate architecture or pubescence;resin pocket shape;resin pocket shape;resin pocket architecture or pubescence"><b>Bark </b>redbrown, forming square or irregularly rectangular, scaly plates, resin pockets absent.</span> <span class="statement" id="st-d0_s4" data-properties="branch orientation"><b>Branches </b>spreading-ascending;</span> <span class="statement" id="st-d0_s5" data-properties="twig size;twig coloration;twig coloration;twig coloration;twig life cycle;twig coloration;twig pubescence or relief">twigs moderately slender (to ca. 1cm thick), orangish to yellowbrown, aging darker brown, rough.</span> <span class="statement" id="st-d0_s6" data-properties="bud shape;bud coloration;bud atypical some measurement;bud some measurement;bud width;bud coating"><b>Buds </b>lance-cylindric, pale redbrown, 1–1.2 (–2) cm, mostly less than 1cm broad, slightly resinous;</span> <span class="statement" id="st-d0_s7" data-properties="scale margin shape;apex shape">scale margins white-fringed, apex acuminate.</span> <span class="statement" id="st-d0_s8" data-properties="leaf count;leaf orientation;leaf orientation;leaf orientation;leaf duration;leaf count;leaf atypical length;leaf atypical length;leaf length;leaf width;leaf course;leaf architecture;leaf texture;leaf depth;leaf coloration;stomatal size or width;line size or width;margin architecture or shape;apex shape;apex shape;apex shape"><b>Leaves </b>2–3 per fascicle, ascending to spreading, persisting 3 years, (10–) 12–18 (–23) cm × 1–2mm, straight, slightly twisted, pliant, deep yellow-green, all surfaces with narrow stomatal lines, margins finely serrulate, apex acute to abruptly conic-subulate;</span> <span class="statement" id="st-d0_s9" data-properties="sheath some measurement;base duration">sheath 1–2.5cm, base persistent.</span> <span class="statement" id="st-d0_s10" data-properties="pollen cone shape;pollen cone some measurement;pollen cone coloration;pollen cone coloration;pollen cone coloration"><b>Pollen </b>cones cylindric, 20–40mm, yellow to yellowbrown.</span> <span class="statement" id="st-d0_s11" data-properties="seed-cone life cycle;border coloration"><b>Seed-</b>cones maturing in 2 years, shedding seeds soon thereafter, not persistent, solitary or in small clusters, nearly terminal, symmetric, lanceoloid before opening, narrowly ovoid when open, 6–12cm, mostly dull yellowbrown, sessile to nearly sessile, scales without dark border on adaxial surface distally;</span> <span class="statement" id="st-d0_s12" data-properties="apophysis reflectance;apophysis size or width;apophysis prominence;apophysis shape;apophysis shape">apophyses dull, slightly thickened, variously raised (more so toward cone base), rhombic, strongly transversely keeled;</span> <span class="statement" id="st-d0_s13" data-properties="umbo position;umbo orientation;umbo shape;umbo shape;umbo shape;umbo shape;prickle shape">umbo central, recurved, stoutly pyramidal, tapering to stout-based, sharp prickle.</span> <span class="statement" id="st-d0_s14" data-properties="seed shape"><b>Seeds </b>obdeltoid;</span> <span class="statement" id="st-d0_s15" data-properties="body some measurement;body coloration">body 5–6mm, redbrown;</span> <span class="statement" id="st-d0_s16" data-properties="">wing to 20mm.</span> <span class="statement" id="st-d0_s17" data-properties="wing some measurement;2n chromosome count">2n =24.</span><!--

-->{{Treatment/Body
|habitat=Mesic lowlands and swamp borders to dry uplands
|elevation=0–700m
|distribution=Ala.;Ark.;Del.;Fla.;Ga.;Ky.;La.;Md.;Miss.;N.J.;N.C.;Okla.;S.C.;Tenn.;Tex.;Va.
|discussion=<p>Originally most races of Pinus taeda were in the lowlands. Following disturbance of the natural vegetation after settlement by Europeans, the species spread to fine-textured, fallow, upland soils, where it now occurs intermixed with P. echinata and P. virginiana. In the Southeast P. taeda is commonly used in plantation forestry, along with P. elliottii and P. echinata. Pinus taeda frequently forms hybrids with P. echinata and P. palustris (P. × sondereggeri H.H. Chapman). Commercially, it is a valuable pulpwood and timber species.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Pinus taeda
|author=
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Pinaceae
|habitat=Mesic lowlands and swamp borders to dry uplands
|elevation=0–700m
|distribution=Ala.;Ark.;Del.;Fla.;Ga.;Ky.;La.;Md.;Miss.;N.J.;N.C.;Okla.;S.C.;Tenn.;Tex.;Va.
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/287ef3db526bd807d435a3c7423ef2df1e951227/V2/V2_416.xml
|genus=Pinus
|species=Pinus taeda
|2n chromosome count=24
|apex shape=acute;abruptly conic-subulate
|apophysis prominence=raised
|apophysis reflectance=dull
|apophysis shape=keeled;rhombic
|apophysis size or width=thickened
|bark coloration=redbrown
|bark count=absent
|base duration=persistent
|body coloration=redbrown
|body some measurement=5mm;6mm
|border coloration=dark
|branch orientation=spreading-ascending
|bud atypical some measurement=1.2cm;2cm
|bud coating=resinous
|bud coloration=pale redbrown
|bud shape=lance-cylindric
|bud some measurement=1cm;1.2cm
|bud width=0cm;1cm
|crown shape=broadly conic;rounded
|leaf architecture=twisted
|leaf atypical length=18cm;23cm
|leaf coloration=yellow-green
|leaf count=3;2;3
|leaf course=straight
|leaf depth=deep
|leaf duration=persisting
|leaf length=12cm;18cm
|leaf orientation=ascending;spreading
|leaf texture=pliant
|leaf width=1mm;2mm
|line size or width=narrow
|margin architecture or shape=serrulate
|plate architecture or pubescence=scaly
|plate shape=rectangular;square
|pollen cone coloration=yellow;yellowbrown
|pollen cone shape=cylindric
|pollen cone some measurement=20mm;40mm
|prickle shape=sharp
|resin pocket architecture or pubescence=scaly
|resin pocket shape=rectangular;square
|scale margin shape=white-fringed
|seed shape=obdeltoid
|seed-cone life cycle=maturing
|sheath some measurement=1cm;2.5cm
|shoot derivation=adventitious
|stomatal size or width=narrow
|tree some measurement=0m;46m
|trunk course=straight
|trunk diameter=0m;1.6m
|twig coloration=darker brown;orangish;yellowbrown
|twig life cycle=aging
|twig pubescence or relief=rough
|twig size=slender
|umbo orientation=recurved
|umbo position=central
|umbo shape=tapering;stout-based
|wing some measurement=0mm;20mm
}}<!--

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