Difference between revisions of "Pinus banksiana"
Descr. Pinus 1: 7, plate 3. 1803.
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 12: | Line 12: | ||
|name=Pinus divaricata | |name=Pinus divaricata | ||
|authority=(Aiton) Sudworth | |authority=(Aiton) Sudworth | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Pinus sylvestris var. divaricata | |name=Pinus sylvestris var. divaricata | ||
|authority=Aiton | |authority=Aiton | ||
| Line 29: | Line 29: | ||
|elevation=0–800m | |elevation=0–800m | ||
|distribution=Alta.;B.C.;Man.;N.B.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ill.;Ind.;Maine;Mich.;Minn.;N.H.;N.Y.;Pa.;Vt.;Wis. | |distribution=Alta.;B.C.;Man.;N.B.;N.W.T.;N.S.;Ont.;P.E.I.;Que.;Sask.;Ill.;Ind.;Maine;Mich.;Minn.;N.H.;N.Y.;Pa.;Vt.;Wis. | ||
| − | |discussion=<p>Pinus banksiana reaches its largest size and best form in Canada. In western Alberta and in northeastern British Columbia, it is sympatric with P. contorta and forms hybrid swarms with that species.</p><!-- | + | |discussion=<p><i>Pinus banksiana</i> reaches its largest size and best form in Canada. In western Alberta and in northeastern British Columbia, it is sympatric with <i>P. contorta</i> and forms hybrid swarms with that species.</p><!-- |
| − | --><p>Jack pine (Pinus banksiana) is the territorial tree of the Northwest Territories.</p> | + | --><p>Jack pine (<i>Pinus banksiana</i>) is the territorial tree of the Northwest Territories.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 53: | Line 53: | ||
|publication year=1803 | |publication year=1803 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V2/V2_763.xml |
|genus=Pinus | |genus=Pinus | ||
|species=Pinus banksiana | |species=Pinus banksiana | ||
Revision as of 15:50, 18 September 2019
Trees to 27m; trunk to 0.6m diam., straight to crooked; crown becoming irregularly rounded or spreading and flattened. Bark orange- to red-brown, scaly. Branches descending to spreading-ascending, poorly self-pruning; twigs slender, orange-red to red-brown, aging gray-brown, rough. Buds ovoid, red-brown, 0.5–1cm, resinous; scale margins nearly entire. Leaves 2 per fascicle, spreading or ascending, persisting 2–3 years, 2–5cm × 1–1.5(–2)mm, twisted, yellow-green, all surfaces with fine stomatal lines, margins finely serrulate, apex acute to short-subulate; sheath 0.3–0.6cm, semipersistent. Pollen cones cylindric, 10–15mm, yellow to orange-brown. Seed cones maturing in 2 years, shedding seeds soon thereafter or often long-serotinous and shedding seeds only through age or fire, upcurved, asymmetric, lanceoloid before opening, ovoid when open, 3–5.5cm, tan to light brown or greenish yellow, slick, nearly sessile or short-stalked, most apophyses depressed but increasingly mammillate toward outer cone base; umbo central, depressed, small, sunken centrally, unarmed or with a small, reflexed apiculus. Seeds compressed-obovoid, oblique; body 4–5mm, brown to near black; wing 10–12mm. 2n =24.
Habitat: Fire successional in boreal forests, tundra transition, dry flats, and hills, sandy soils
Elevation: 0–800m
Distribution
Alta., B.C., Man., N.B., N.W.T., N.S., Ont., P.E.I., Que., Sask., Ill., Ind., Maine, Mich., Minn., N.H., N.Y., Pa., Vt., Wis.
Discussion
Pinus banksiana reaches its largest size and best form in Canada. In western Alberta and in northeastern British Columbia, it is sympatric with P. contorta and forms hybrid swarms with that species.
Jack pine (Pinus banksiana) is the territorial tree of the Northwest Territories.
Selected References
None.